hey all. i'm looking for some suggestions for upgrading my compaq pc recently got from fs's boxing day sale. i'm sure many of u guys got the deal (hopefully)

1) good graphics card for a good price. i recall reading a post that the pc had a specific power supply and was required. if any of you guys did upgrade a good graphics card. please let me know.

2) good price on ram. supposedly needs 1.8v ram. sites dont seem to tell what the voltage is so any help is great!

thanks all!