Need some more advice

Well the system i have now is doing OK, but the sim is still slow in alot of aspects.
(Look at my sig)
My current set-up cannot really handle everything i throw at it....
So one of the main things im going to upgrade is the CPU. I'm going to upgrade this to a Amd 64 3700+, because of this i also need a new Motherboard...now this is where i need help.
I have found the Motherboard i think i like (http://www.ebuyer.com/customer/products ... uid=101701), but the Graphics card i have now is a 6600GT AGP Card...The Motherboard doesn't have an AGP Slot, so obviously i need a PCI-E Graphics card to go with the new motherboard. I was thinking of going for a AGP board and keeping the 6600GT, but what if i want to upgrade my Graphics card in the future? More than likely it will be PCI-E card if i do upgrade in the future. So therefore im going to stick with the Motherboard which Has the PCI-E slot.
So now ive sorted out my Motherboard, and CPU , i need a new Graphics card.
Ive been looking at the 6800GS model (http://www.ebuyer.com/customer/products ... _uid=98817), and they seem pretty cool...
...Would there be a big difference compared to my 6600GT AGP i have now?
If the 6800GS isn't alot better than my current 6600GT, i was looking at the 7800GT, surely thats got to be good?
Remember im on a
(Look at my sig)
My current set-up cannot really handle everything i throw at it....
So one of the main things im going to upgrade is the CPU. I'm going to upgrade this to a Amd 64 3700+, because of this i also need a new Motherboard...now this is where i need help.
I have found the Motherboard i think i like (http://www.ebuyer.com/customer/products ... uid=101701), but the Graphics card i have now is a 6600GT AGP Card...The Motherboard doesn't have an AGP Slot, so obviously i need a PCI-E Graphics card to go with the new motherboard. I was thinking of going for a AGP board and keeping the 6600GT, but what if i want to upgrade my Graphics card in the future? More than likely it will be PCI-E card if i do upgrade in the future. So therefore im going to stick with the Motherboard which Has the PCI-E slot.
So now ive sorted out my Motherboard, and CPU , i need a new Graphics card.
Ive been looking at the 6800GS model (http://www.ebuyer.com/customer/products ... _uid=98817), and they seem pretty cool...
...Would there be a big difference compared to my 6600GT AGP i have now?
If the 6800GS isn't alot better than my current 6600GT, i was looking at the 7800GT, surely thats got to be good?
Remember im on a