|It's a shame your card didn't die two weeks ago!|
TigerDirect had an x1950Pro AGP for $65, and Newegg had a 6600GT for $25--truly excellent deals.
I'd avoid the 6200--it's just as slow as the 5600XT. Try searching eBay. You can sometimes find incredible deals on video cards there.
"It reads... 4A (@220 v)."
That's the input current @ mains voltage. Open the PC and read the sticker on the power supply. How many amps can the +12v rail(s) dole out?
Edit: I see you've changed your post. 20A on the 12v should be able to run most AGP cards fine, especially since your CPU isn't nearly as power hungry as modern processors.
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