I'm a guitarist by default. I've been playing that for the longest - 12 years, now. I'm a sloppy mess of a guitarist, but I never put the thing down. I may never practice, but I always play, usually for at least 3-4 hours a day, all in all.
I have two mid-tier guitars that I cherish like close family. One is a Frankenstein Ibanez RG series that I constructed from the remnants of several Ibanez guitars 8 years ago. I wired everything myself and put a lot of time and love into setting it up to play just how I like. Looks like a bit of a beater, but it's secretly a jazz/metal machine. It'll always be my favorite, though my other guitar, the Schecter C-1 is much more well-rounded.
Unfortunately, I'm running them through a Line 6 spider II 150w and matched 4x12 cab. I've learned to coax all sorts of nice tones out of it over the years, though, so I don't mind it. I don't know why Line 6 amps get so much hate. They're decent amps for what you pay. They're great player's amps. If anything, it's taught me the meaning of "finger-tone."
I also have a scarlett 2i2, which is my favorite piece of equipment. I can run my instrument-level signal from my guitar into my computer with it and craft any sound I want from the raw signal in real time. That probably has a lot to do with why I'm not amp or pedal crazy like a lot of guitarists tend to be. I find that all I need is a guitar that has some decent pickups and a cozy feel to it to dial-in pretty much any tone I could want. Amp, cab, and room emulation has come a VERY long way in the past decade.
I dunno, never been much of a gearhead. I tend to pick one piece of equipment to dive into and make my own.
I have a 40-key Novation usb midi keyboard that I like to play on a lot, too. The key's aren't weighted at all, so it's not much more than a toy. I'm also not any good at it, but I'm working on that. My guitarist instinct is to mostly use my left hand. I'm trying to break myself of that and get more of an even exchange between both hands going on.
My grandmother has a standup piano that I love to play on. It brings things out of me that don't come out on the plastic toy. I agree danny, nothing beats the feel and timbre of a real piano. I'm still trying to get her to sell me that piano. She sadly has severe rheumatoid arthritis and can't really play on it anymore. I think it has too much sentimental value for her to let it go, which I can understand.
I also play the voicebox for kicks. Bass guitar too, when I can borrow one, that is!
I would pick up the drums if I had room for a kit. I may get a digi kit just to have something to knock around a bit when I can afford to.
These days, I'm interested in producing my own music. I'm not much of a performance-oriented player. I love to jam with other musicians, but the thing I enjoy most about playing music is being in a space that is my own to explore as I wish to. I highly value the intimacy of solitary musical exploration. Those are holy moments for me. I'd like to be able to capture the things I'm playing and hearing during those moments in their truest form so that I can share them with people. I want to catch a fairy in a bottle just to prove to the world that it exists.
The reason I want to play multiple instruments has to do with the fact that the music I'm auralizing at this point in my endeavors covers everything and executing it all properly will require a deeper practical understanding of the nuances of multiple instruments. I think I've got enough going on up there to write, track, and produce my own music. That's the more down-to-earth side of my musical dreams, anyway. So maybe I'll post some stuff up when I get my shit together a bit.
Jesus, I did not mean for this to be an essay. Sorry guys!