The "rule of thumb" for setting the swap size is to make it 2x your physical amount of memory, so in your case 1024mb for the min & max. Personally I'd set it lower, but I have no empirical evidence to back up my choice - I think mine is set at 256mb min/max, and I have 256mb of ram.
No, no, no...
That would mean the more RAM you have the more swap file you would need, this is incorrect. With 512 MB in 98 you could set your swap file for 20 MB & probably never run out of memory. You do NOT need a gig of HD space as virtual memory if you have 512 MB RAM.
Viper GTS