That small case he is refering to is a dell small form factor workstation, the newer models typically come with a sempron 3200+ or a pentium 4 model D single core, or a celleron, 256mb to 512mb ram, small PCMCIA or SATA 2.5 inch hard drive, basically an oversized calculator that usually looks somthing like this...
http://www.computerstore.uci.edu/catalog/images/product_images/40000025606.gif
the problem with dell are as follows:
1) they use proprietary parts, i.e. you could end up with a unit with a psu or motherboard built specifically for dell to specifically fit that system, if it goes wrong after your cover is up, youl find its only supplied by dell itself, for a rather large fee.
2) there budget systems are crap, and i mean crap, the $359 range wont accept an X2 cpu, you have to start at the $549 range, the E520 models. even then you get an inferior pc:
PROCESSOR AMD Athlon? 64 X2 Dual-Core 4600+
OPERATING SYSTEM Genuine Windows Vista? Home Basic <---- non optional, money wasted.
MEMORY 1GB Dual Channel DDR2 SDRAM at 533MHz- 2DIMMs <---------- slower than my spec.
HARD DRIVE 250GB Serial ATA Hard Drive (7200RPM) w/DataBurst Cache? <----- the smallest they do, money wasted.
OPTICAL DRIVE 16x DVD+/-RW Drive <----- unknown brand, non optional.
VIDEO CARD NVIDIA GeForce 6150 LE Integrated Graphics GPU
SOUND Integrated 7.1 Channel Audio
My Accessories
SPEAKERS No speakers (Speakers are required to hear audio from your system)
KEYBOARD & MOUSE Dell USB Keyboard and Dell 2-button Scroll Mouse
FLOPPY & MEDIA READER No Floppy Drive Included
MODEM 56K PCI Data Fax Modem <----- non optional, money wasted.
My Software
PRODUCTIVITY No productivity suite added
ANTI-VIRUS & SECURITY No Security Subscription added
PHOTOS, MUSIC & MORE! Trial pack- Basic and trial products from Corel and Yahoo, <---- why ???
My Service
WARRANTY AND SERVICE 1Yr Ltd Warranty and At-Home Service <----- god help you if you ever let a dell engineer lose on your system.
Dell Recommends
An Additional Year of Service! <------ im sure you do, its pure profit.
Upgrade Your Years of Service. Choose 2 Years of Service and protect your investment! <----- wehey, more profit.
Adobe Software Adobe® Acrobat® Reader 7.0 <----- its free, why are they listing this.
Network Interface Integrated 10/100 Ethernet <---- again, part of the motherboard.
Miscellaneous Award Winning Service and Support <----- not lately, slight case of exploding battery's.
Labels Windows Vista? Basic <----- big woop.
also you have no way of checking the specifications of the motherboard, so you dont even know if its going to have a PCI-E socket or be some generic rubbish with no possibility of an upgrade as dell have done with their past cheaper systems much to the annoyance of many many people.
oh and i nearly forgot the price tag...
Sub-total $649.00
Calculate Tax, Tax for houston is $53.54
Total Price $702.54
for a slower inferior system with lots of things you dont want imagine the system you could build yourself with $700 instead of relying on dell.
believe it or not, the spec i have given you is not an eco system, its an upper mid range system, the motherboard itself in my spec has a ton of useful future proof features and its what i like to call a transparent build, i.e. you know exactly what the specs are and exactly what its capable of, with a Dell, you simply dont.
also i took the liberty of recalculating the system spec i gave you WITHOUT the psu and case and with shipping (im using a houston zip code, 77001 to get an estimate, god bless google) it came out at $404.53 including shipping, 3 day insured UPS delivery.
now you could either build the system as it is or dump the $95 back into the build, i.e. reove the motherboard and cpu bundle, just get the motherboard alone here
http://www.newegg.com/Product/Product.asp?item=N82E16813127016
and spend the saved money on an even faster CPU such as:
AMD Athlon 64 X2 5200+ Windsor 2.6GHz
http://www.newegg.com/Product/Product.asp?item=N82E16819103759
bringing the build total to $474 inc shipping
or a 2 x 1 gig set of ram:
http://www.newegg.com/Product/Product.asp?item=N82E16820145590
CORSAIR XMS2 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit <----- bloody fast stuff.
Total if having the ram and not the faster CPU = $512.02 inc shipping. but! theres a $40 rebate on the ram!! so in effect the total is $472.02 inc shipping after rebate
now take this to your blokey from dell and ask him how much they would charge for it... youl be looking at 7 to 8 hundred dollars as every dell, and HP and any other pre built crap overcharges for parts and comes with all those extra`s that you just dont want but cant remove.
alternatively if he decides to go with a freebie dell small form factor from his work, he will be very very disappointed with the power of the system, they are not built for heavy processing, they are office systems for office tasks such as data input and output with minimal calculations involved.
either way i hope ive been of some use, happy shopping.