Welcome to the Team, every bit helps. For an extra little boost, you could up the shaders a bit which would produce very little extra heat or use much extra power. The core and memory don't have much of an impact on Folding and so don't need a boost.Here's a new member of the HWC FAH team!
I'm currently running the V6 GPU2 system tray client on Vista 32 bits. My graphic card is a stock Asus EN8600GTS -- guess it's better than nothing (or running the CPU client, which I didn't want to anyway). The temperature of the GPU (reported by NVIDIA monitoring tool) is staying below 60 degrees Celsius, so I guess everything is under control.
Note that since I'm a bit cheap and eco-friendly, I won't be running the client when it's going to get hotter here (which will takes a couple of months and won't last long). Also, I won't be running the client 24/7 since I don't usually leave my computer turned on during the night and I'm also often on my Linux-based OS.
Once you are credited with your first WU, apply for a Folding Tag here http://www.hardwarecanucks.com/forum/hardwarecanucks-f-h-team/8325-folding-tag-requests.html