I don't use alot of FX with my bass, but when I want/need to I use mainly rackmount.
Rig #1
SWR Super Redhead w/ ART SGX Nitro in the amp's FX loop
Rig #2 SWR SM 900 w/ ART SGX Nitro in the FX loop
Rig #3 SWR SM 500 w/ Lexicon MPX G2 in loop and amp input
ART X-15, X-12 and Lexicon R1 foot controllers
also sometimes use a Dunlop Bass Crybaby 105 Q, Tube Works Blue Tube and Digitech Bass Whammy pedals.
Just for basic effects, Chorus, Flanger, -12 Octave, L & S Delays, Reverb, OD/ Dist ( ART & Lexicon)
OD & Boost ( Blue Tube)
Chorus/Detune, Octaver ( Whammy)
also have an ART Nightbass and Digitech Bass Harmony Machine, which I haven't gigged with yet, but they are pretty cool.
Chris Squire might have been using a Eventide Harmonizer on Tormato, He used a Tobias Custom 5 string on Big Generator tuning the low B string down to an A and a MPC Electra on Drama it had fx modules that plugged into the back of the bass Tempus Fugit..........it just goes to show you even tho he used different basses he still sounds like Chris Squire and Rickenbacker.
His website has some info on his gear and some transcriptions to some Yes songs, although not in his gear list, you can see he has a ART Nightbass in his rack......
www.chrissquire.com Bruce