Crap. I just wrote a whole big reply up explaining this stuff to you, and also saying PCIE slots (that side of the board) would be one of the last things to go out, so I'm not convinced. But, if you're thoroughly convinced that it's broke, go ahead and shell out the cash
Everything I wrote got deleted.
To put it short, the only things that matter in terms of compatability are your Processor (socket - and yours is AM2+ it looks like. Double check anyway.) and your Ram (the clock speed - DDR2 or 3 ... 1066, 1300, 1600.. something like that) For your PSU, all boards now have 24 pin (20+4) connectors. You don't have to worry about that.. but make sure anyway. For your GPU, it says it takes a PCIE 2.0 x 16. Make sure you have that PCIE slot.. but almost everything will unless you go cheapo.
Your new motherboard needs to have/support:
AM2+ (that's the socket of your CPU)
24 pin (psu)