If you have any specific suggestions on the flangers and phasers modules, those will be very much welcome :)
-- abstractrhythms
One I've found intriguing as of late is Frequency Central's Stasis Leak. In 6 hp, you get a stereo chorus, tap tempo delay, and reverb. Plus, since the module takes a mono input and "stereoizes" that, you get that extra perk along with the FX. Plus, Happy Nerding's multieffects modules, the FX Aid (4 hp) and FX Aid XL (6 hp) are big wins if you need a larger variety of FX algorithms. Potent...AND space-efficient.