Well, the Bad Monkey has a few friends around here if you need a low/medium gain OD. I like a Proco RAT for higher gains but try to find an older one with the LM308 chip.
For delay I'd suggest a digital unit for flexibility, most have some kind of high cut filter to sound like analog delays but with more delay time. The new Boss DD-7 actually models the collector grade DM-2 analog unit. Reverb will be a digital unit too, but should have the ability to sound like a spring if needed. My favourite choruses are the Boss CE-2 or the Arion SCH-1 (or SCH-Z) but I like thick warbly chorus. For wah it's hard to beat a Dunlop or Vox. Try both, they're different in feel and sound.