I just found a guy to sell me an AM62 from Groove Tubes/ Alesis. The reason I was interested in this mic, specifically, is that I'd picked it 4 times (twice on male vocals, and twice on female) on the Lynn Fuston Mic comparison CD from 3D Audio. Since I picked the mic 4 times, I felt I owed it to myself to at least try it out. It's a large diaphragm tube condenser with 9 different polar patterns.
I paid $300 on ebay, and it arrived last weekend in pristine shape. I bought it from a guy named Robert McGilpin in Nashville who has a small personal mic collection, and he was a dream to deal with - expert packing job and super speedy service - I'd buy again from him in a heartbeat.
It really sounds nice - I just did quite a bit of vocal tracking and BG vox layering, and I was pretty surprised at how much fun it was to use - I wasn't really expecting to be this happy. I especially liked the figure 8 and hyper cardioid patterns on the mic.
So I would say, if you can find one, and they're not that easy to find because the mic was built in the transitional GT/Alesis phase, you should definitely pick one up. It's a really good compliment to a large diaphragm transisiter condenser mic.
Groove Tubes current (or so they say) version of this mic (it certainly looks th esame, judging from the web photo) is the GT67, at $1000
http://www.groovetubes.com/product.cfm?Product_ID=1599
The original version of this mic retailed for $825.
Tech at Groove Tubes says they've changed the barrel, but I don't see a difference, so it might just be slight.