IMHO ram can be found real cheap in these days. Sure it is about what you are aiming for but like Corsair Value S. 2x512 costs almost nothing, and 2x1gb of those is a killer deal. Only bad things is that the timings could be better and the overclockability is very lacking. Still nice set of RAM.
Getting top-of-the-line mem won't cost that much either IMO.
Bought 2x1GB RAM Corsair TwinX PC3200 2-3-2-6 specified and they work wonderful in 1T paired with my A64 3700+... Love them...