I've got some decent stuff...nothing spectacular though, and I buy it all new...unless it's not electric. Acoustic instruments almost seem to sound better to me after they've been broken in with a previous owner :D. For new stuff, i get it at Musician's Friend; usually they have the best prices out of everywhere I look, and the used stuff i get at my local Music-Go-Round; again, best prices of any of the vendors in town. Guitar Center just gouges the hell out of you...on everything. Two locally founded companies (Doo-Wop and Willis) are somewhere in between. Nothing beats the prices on used gear at Music-Go-Round though :D
PreSonus AudioBox USB: Affordable, easy to setup, sounds great! I use it as a soundcard. It allows for two inputs (0.25 inch/XLR for both of them :))), one MIDI in/out, and stereo RCA output for monitors. Only bad thing about it is the way the knobs are designed, it's hard to tell what they're set to. A little black magic marker fixes them right up though. $150 at Musicians Friend.
Sony MHC-EC991: This is my cheap alternative to studio monitors. I actually read in a lot of reviews on monitors that shelf monitors are designed to emulate popular cheap shelf systems, with low bass output, as to provide a mastering environment that's somewhere close to what your average listener will be hearing. This got me to thinking; why pay the extra money to a music company for a pair of speakers that are supposed to sound like a shelf system? I could pay 200 bucks a piece for two shelf monitors, or pay 200 bucks total for a 2.1 shelf system at wal-mart. So that's what I did. This guy has a switch to turn off the subwoofer as necessary, and it even provides a dock for my iPod/iPhone; what novelty! Sony discontinued the model that I have, but you can find similar variants at Wal-Mart, Amazon and the Sony Store for around $180.
E-MU X-Board 61: The most useful of all my cheapo gear. I shopped for a long time looking for a good controller at a reasonable price. After having a bad experience with an M-Audio USB-MIDI interface, I absolutely refuse to buy any of their products. So it boiled down to what the controllers from other popular manufacturers could offer me; the E-MU Xboards come with a software synth called Proteus X, which years ago used to be a rack-mount studio synth that was quite popular. It comes packaged with the highest quality collection of massive sound libraries I've ever heard, to this day (thousands of instruments and sounds, literally, thousands!). I actually purchased the XBoard 49, and musicians friend sent me the 61 by mistake (But i sure as hell didn't complain). Creative (E-MU's parent company) has discontinued the XBoard series, but you can still find them in used gear shops around the web and your town to be sure. I find that Proteus X doesn't exactly get along with FL Studio, at least when I have multiple instances of it running in one project. Not to worry, it's quite easy to sample Proteus X and just use the samples in the final rendering. The 61's are going for about $150; which, ironically enough, is about what I paid for a 49 at the time of my purchase.
Adams Bongos: Not much to say here, good cheapo bongos with 4 tuning screws on each of its goat-skin heads. I paid about $50 bucks for it used; chances are you can find a decent set of bongos with rubber-plastic composite heads for about that price new today.
Yamaha P-25D Melodica: Again, not much to say. It's a great melodica! I might've over paid for it ($50), but you'll be hard pressed to find this model from Yamaha today for less than $90 (I saw it for 79 euro somewhere...). Horhner makes one that you can get new for about $60 today.
That about does it for my cheap gear. I've got a DM-10 Studio kit that I bought new, but that wasn't cheap ($999.00). It's great though, awesome sounds, uses real mylar drum heads for a real drum feel, rather than that rubber mat stuff. I dig on the mesh heads, but Roland seems to think their shit doesnt stink ($1400 for the cheapo V-Drum set, more than $2k for the comparable Roland to my Alesis).