Out of ineterst my scar was chronoing at about 297 fps out of the box. It still has an impressive range on it though and I'm happy with it. Just need to get it wired for deans and a decent 7.4v lipo.
I have a canon S95, and am fairly pleased with it. They should be cheaper now as the S100 has been released. You can find a review by this guy here:
http://www.kenrockwell.com/canon/s95.htm
Yup, its a Guarder 74 kit, I agree with the forgrips looking a little odd in the photo, they look a lot better in person but they don't bother me much.
Yup, the cobra is a very nice red dot, bit tricky to fit though, receiver requires some holes to be drilled and dremelled on the inside to get the side rail mount to fit, but its well worth the effort I find.