Rob,
I was just talking this over with my father today!

I'm having a little trouble finding 1.25" MDF around here. I can get 1" and 1.125" MDF just fine. I'm hoping Danny will go for the 1/8" thinner material. I doubt it will make much of a difference in cabinet resonances or rigidity. Let me talk things over with Danny concerning the MDF issue and I'll let you know.
Concerning the Alphas, I'd originally said that we could build them for $1600/pr., but after building 3 pair, I'd have to say $2000/pr. would be more like it.
I'll see if I can find some other interesting pics laying around that I can post. We just finished a pair of A/V-3's today for in shop demo's. I'll have some pics of them in a few days. Maybe some pics of my subs. If you've seen the ACI LE series cabinets they look very similar to those. They have three parallel 1/4" wide grooves routed all the way around the cabinets. Then I painted them with a black eggshell finish. Each sub houses a single SV12 driver.
I also bought an unfinished Cheval (sp?) mirror for my wife for Christmas. My dad finished it in red mahogany dye with a semi-gloss polyurethane finish. It's nearly an exact match to our Pennsylvania House Cherry bedroom furniture. Oh, and there's the TV stand that we built for the shop. I'll have to get some pics of that as well.