swivs,
RE: "what brand of EQ do you recommed with the rectos?". Which brand of amp you're playing through has nothing to do with which EQ you choose. Most pedal graphic EQ's are 7-band, meaning 7 sliders to adjust. The Boss GE-7 is a perennial favorite, but the Danelctro Fish n' Chips is just as good but cheaper. The MXR 10-band is also good, if a bit larger. Basically just Google it; you'll find plenty of information out there.
As for effects placement order, there are actually two chains of effects: one between your guitar and your amp, and one in your effects loop. Before the amp, the wah can go either first or second with the overdrive, then into the amp. In the effects loop, put the EQ first, then the flange/phase/chorus, then the noise gate, and lastly the delay, then back into the amp return.
This effects order is crucial, especially if you have spent a lot of money on an amp as nice as a Mesa. Too many guys who don't know any better just stick everything in front of the amp, which makes a $1500 amp sound like $10 ***. What a waste.
As to which overdrive? Let your ears decide completely. They all do the same thing, which is to push your guitar's signal before it hits the amp. Let your own taste preference decide which one sounds best to you.