I was wanting to upgrade the graphics on my 3+ year-old computer, that was running a GeForce 8400 card with 256 Mb of memory. My problem was I didn't want to replace my 350 watt power supply AND the graphics card. I got a good deal on a Galaxy 210 with 512 Mb memory, $18+ after rebate, but it really didn't make a big improvement in the graphics. Then I found the Zotac GeForce 440 GT with 1 Gig of GDDR5 memory. Tigerdirect has them for $90 and a $20 rebate. The real winner is, this card will run with a power supply of just 300 watts. It takes up 2 slots so I moved my sound card down a slot, to give more air space between the two. Card installed without a hitch and runs 10 degrees C cooler than the 210. Fallout: New Vegas detected the card and reset all the graphics settings to HIGH. I'm well pleased with it.
Zotac at Tigerdirect