I was looking at that card as well and I do remember reading complaints about heat and poor overclocking. So I would personally pass it up even for a crappy but still cheap GT430 but the GT240 is better. It is the type of vram and the clocks that count as well architecture. If you want a sure thing when it comes to cuda look for a cheap G92 that isn't LP and have crappy cooling. GT450 is about the next step up and provides a lot of bang for buck.
I was think about getting this card because it seems to be the cheapest card with CUDA :
I want to use it with Premiere - do you think it is a good deal? I know it is only 512 ram though...
If you are going to use this with Adobe, you really want a GT240 WITH 1GB of DDR5 RAM... to see why, read the thorough explanation at: http://www.studio1productions.com/Articles/PremiereCS5.htm (It won't work w/512MB, and DDR5 is 45% faster)