Thanks Jim! I'll shoot for Maths next and definitely keep my spending in perspective. As far as Maths goes: between that and Pam's I should be good on envelope generation right? I don't know how much need I have for envelope generators at the moment (seeing as not much in this proposed rack would benefit from non-cycling envelopes), but will I want more in the future or should Maths and Pam's cover me for the moment?

Also, I noticed you have a rack for video. How do you (or anyone else) like modular for video work? Seems like a deep and seldom explored cave.