Nothing in your post shows where more RAM would pay off.
System: Gateway 450ROG XL; xp pro; intel pentium m 1.8ghz; 768mb ram; ati mobility radeon 9600 (256mb).
System capable of 2GB memory, but is it worth it? Are the CPU and GPU worthy of 2GB? Gateway is currently selling 1gb sticks for $150 each. If 2gb is overkill, what might be the optimal configuration for my system? Thanks for the help.