Worth an upgrade?

[Avalon]

My lady friend has an AMD Athlon XP 1600+ with an ECS K7S5A and 512mb of Geil value ram (PC3200 running cas 2 at PC2100). It's running nicely, but I just noticed in the hot deals forum that there is a CPU/mobo deal going on at Outpost. It's a sempr0n 2500+ (1.75ghz, 333mhz FSB) chip paired with some VIA KT333 board for $75 shipped. I figure I can sell the AXP and ECS board with the copper coolermaster HSF on it for $50 to someone, leaving me with an expense of $25 for the upgrade. With the $25, I'd get a faster CPU by 350mhz, core improvements (palomino vs. thoroughbred), and a bit of extra bandwidth due to being able to run at a higher FSB. In addition to that, I'm getting a slightly more updated feature set (not that I think she'd even notice ). She doesn't do much with the rig as it is...so technically she doesn't even really need this upgrade, but I figured it's only $25 and will help longevity, right?

My trigger finger is itchy for this pocket change upgrade. Might be fun. What do you guys think? Worth the hassle and adventure?

Anyone have this combo?
If so, how is the board? Are there any tweaking options available in the bios?

 

[Mangler]

Some refurb prices I just dug up from newegg..

AMD Athlon 64 2800+ $125.90
AOpen nForce3 150 MK89-L $50.00
Total $175.90 shipped

OR

AMD Sempron 2800+ $96
ECS KT600-A $29
Total $ 125 shipped

I'd personally lean to the second option if you wanted to upgrade... the KT600 is a better chipset than the KT333 and the 2800+ (2GHz) is obviously faster than the 2500+ processor.

 

[ChurchOfSubgenius]

I wouldn't bother upgrading a web surf box like that, it's only $25 but she won't see any performance increase and there is some hassle involved.... i.e. what if XP rejects new MB, RAM incompatability, bad parts etc...
I still have a PIII box for a web surfer that might as well be a P4 3ghz because it wouldn't make a bit of difference for what it's use is.