best way to upgrade

go to fry's

get the amd Athlong 64 3000+ with ECS motherboard for 100

Get this video card
http://www.monarchcomputer.com/Merch...ct_Code=190818

and get this ram

http://www.staples.com/webapp/wcs/st...plesZipCodeAdd

Your HD should work with the mobo as well as ur case, keyboard, dvd, cd etc etc. You may need a new powersupply but those can be like 30-50 more only.

Enjoy