System performance with Key Clone

I have a Duo Core E6750 (running at 2.9GHZ) Water Cooled PC.

It has a Water Coold CPU, GPU, etc.

The Grafik card is 8800GTX and I have 2 gb mem on Vista 64.

When I run 4 or 5 wow windows with Key Clone the system crawls. The CPU is typically around 75% - 85% and the memory usage is 1.5 gb - 1.85gb.

I am wondering if going with more memory will help this situation or if something else is wrong. FPS is fine typically so just thinking maybe it is memory. Will a Readyboost Flash memory card help at all or should I just wait a few more days and buy some more RAM. :?:

have my 6750 running 400mhz fsb with 3gb ram, running smooth as a babys bottom, standard cooling and everything

yeah I guess it is the ram. with 4 windows open, I am running at 1.8gb used RAM. I guess another 1-2 Gb will help ease the burden.

had 1gb before with a 6300, then i couldnt walk in sw due to lag, now i can easilly