>>15 Old Tama Rockstar kit. Got it secondhand about 6 years ago. I haven't been particularly good about keeping it in great conditipn, but it's lasted nonetheless. I recently tuned it and it still sounds really good. Could use some new heads, but can't right now coz expensive.
Zildjian Planet Z cymbals. The ones I got with the kit were absolutely shit and these were the best I could afford. They're a bit clangy, but otherwise sound okay. My guitarist friend got a pair of ZBT's for his drum kit, and I've convinced him to trade them for my Planet Z's, minus the ride. I also have a Zildjian S 18" China, which I got recently and love.
I recently got a pretty sturdy new Meinl hi-hat stand for about $90 AUD. It's not perfect - the cymbals weigh down on it a fair bit - but it's still a huge upgrade from the generic one I had for years. I'd say buy one when you have the money, it makes a noticeable difference. For example, I was finally able to go at it with the hi-hat foot pedal without the stand getting away from me, and now I have almost total left foot independence.
What kit do you use?