Also the question about more ram on the GF3. compared to the GF4.
Extra ram is always desireable but it is only at very high resolutions that there is any performance gain.
Infact as I said in a previous post, of the two versions of GF4 4200Ti (64 & 128mb) the 64mb version is quicker by virtue of it's slightly higher memory clock speed, it is only on the very highest res settings that the 128 version overtakes it's sibling.
So unless you own a 19inch or above monitor and want to set it to the highest res settings you won't notice the differance between a 64 or 128 card,
Now having said all of this if you have the option and the price differance is minimal go 128.
But as far as the GF3 versa's GF4 question, NO CONTEST! even if the GF3 has double the memory.
Things have moved on, and the GF4Ti now rules supreme, if only for a short time! Martin Please let members know if there advice has helped any.