Re: Good cheap studio gear
Tascam is good for the used market.
There are some Behry products that are decent (headphone amps, some of the rack compressor are good for live, I don't use them while recording), but I would never buy them used.
Mackie is decent, not as good as hyped - used, they are a great value.
Good mics that are common and/or inexpensive that outperform their prices new or used:
Shure 57s, Audix i5s = Snare, rack toms, guitars
AKG D112s = kick, bass, floor toms
R0DE NT2-A, R0DE NTK = (these are large diaphram condensers) guitar, vocals, overheads, room mics
R0DE NT5s = (these are small diaphram condensers) hi-hats, rides, spot mics for cymbals
R0DE in general makes very good mics at very good prices, I like 'em.
A couple of pre-amps that rock, but aren't crazy expensive:
Presonus Eureka - adjustable mic impedence (big +), comp switchable before EQ (big +)...this thing makes a properly tuned snare sound like the big dogs when dialed right on the front end
ART Pro Channel - This is worth the price just for the compressor, it rocks on aggressive vocals, this also makes an awesome bass DI pre-amp!
This is a small subset of the items I have experience with, there many products that would do just as well - these I know work as advertised or better than expected and can be found in many places..