+1 on the Splice list. Of those, most often I use Voxengo Span to check levels and frequency spread, TAL-bitcrusher (lightly) on snares/hats/percussion, and TAL-Filter-II because I've been too cheap to buy LFO Tool (I know I should just make the purchase). You can get also some cool distortion out of CamelCrusher but I think they've stopped distributing it. I probably still have the install file so PM me if you want it