Am I Bottle Necking Anywhere?

I was wondering if I was bottlenecking anywhere, I'm not sure if this is the right section but here are my specs.
Phenom ii X4 960t 3.0 Ghz
4GB Kingston Ram (DDR2 667Mhz)
ATI Radeon 6450
430 Watt Corsair 80+ PSU
I know my RAM isn't very good but its all i could do for a cheap motherboard that supports my processor plus it was leftover from another pc build that my stepdad built.
My motherboard supports crossfirex but I can't seem to find 2 graphics cards in the 70$ each range because I can't really go much higher with a 430 watt PSU
If I'm being bottlenecked badly can someone tell me and I'll see if I can get some money to replace it.
Thanks guys!