yep...for special fx & soundtreatment some Logic-plugins are pretty cool!
though you really have to learn to programm & tweak them...(try some of the preset channelstrip combinations for a start...and start tweaking them further!)
but logic desperatly needs improvement on the basic breat & butter stuff -> EQ/Compression/Reverb
plugs and demos to check out:
UAD1-cards (best in character-software so far imho.)
Sony Oxford (clean & veryyyyyyyy versatile)
URS
Sonalksis (nice comp&eq package)
Tritone Digital
for reverb:
Altiverb 6 (huge!!! step up in sonic quality in my opinion from space designer)
EMT140 -> for the UAD card, great vocal/drum-plate
these (EQ,comp,reverbs) will allow you a better "sound design" on all "elements" of your beats