Old Ram, new setup?

[Oooojar]

Hi Guys,

I have the following at the moment:

Asus a8n-sli deluxe
AMD Athlon 64 X2 Dual Core - think its a 4800+
GeIL 2GB (2x1GB) PC3200 Value Dual Channel

I have just bought a BFG8800GT to replace my 2 7800GTs and am now thinking that I should update my kit to do it justice.

I have been out of the hardware scene for about a year now and am confused by all the memory types out there.

I am thinking of upgrading to an Intel E6600 or a Q6600 and a new Mobo to go with it. My questions are, will I have to get new ram or will the 3200 work in it (though cripple it) until I can afford better?

 

[Oooojar]

Thanks both, just seen how cheap 6400 is anyway, must learn to look at prices before asking daft questions