An AMD K6-2/380 will come short in some instances BUT you don't need a hole lot more to be happy... My P3 450 did a good jobb for just about everything concerning WinUAE. Much speed can be gained from propper settings in the emulator.
For WinUAE I'd recomend a 800Mhz or faster CPU, any GFXcard with 32mb or more will do but preferably not built in (a Radeon92x0 will be easy on the wallet), 256Mb PC133 mem is plenty and fast enough, and a simple 40GB or more HD will do for loads of fun storage. What you save on this you can spend on a CatweaselMK3/4, Amiga keyboard and mods for the machine to make it feel more like the real thing.
