I'm trying to access the for sale forum and keep getting an error message. Didn't know if there was a minimum post requirement.
There is, but you should be fine now...if you still cant, you can post a question in the forum issues section and the mods can take a look.
That said, I doubt you will get a better deal on the SSD, the M500 series is about the lowest end you want to go, and $70 is about the cheapest it gets. Even if you can save another $5-10 on a used one it's not worth it. SSDs wear out, and a used one won't have any warranty.
And with 3-4GB RAM Vista patched and tweaked (disable auto defrag, indexing, super fetch, etc) you don't really need a new OS.
Used RAM probably wont hurt, depends how much saving you get whether its worth it or not.The thing is, do you have 2x1GB sticks or 1x2GB stick with a free slot open? If you've got a free slot then you only need one stick, if you've got 2x1GB sticks and no free slots then you need to get 2 sticks. A used 2x2GB set will be better if you need both, but if you've got a 2GB stick now then you could by a new 1GB stick for $10.
Like this:
http://www.amazon.com/Hynix-PC2-5300...ef=pd_sxp_f_pt
3GB is O.K. for Vista 32bit, max is about 3.5GB anyway.
You should have a second HDD bay, so you can keep the stock HDD too, but you may need the adapter or even the full caddy to add another drive.
This is just the connector, no caddy...you might be fine with just this
http://www.amazon.com/Dell-1420-Inte...720+interposer
This set includes the caddy and connector
http://www.amazon.com/Eathtek-connec...720+interposer
With an SSD though there are no moving parts so you may be able to hold the drive in place with just a small square of light foam in the center to kinda squeeze it in place (don't fully cover/insulate the drive though). You can probably find these parts used as well, like on ebay and such...