Don't save on the monitors, it's the most important gear in your studio. That's around one third up to half of your budget. I'm using Neumann KH310 but there's other great speakers on the market. Also don't save on a good pair of open headphones for mixing/mastering, e.g. Sennheiser HD660. Also get a good pair of closed headphones or in-ears for recording, e.g. Direct Sound EX-29. Don't miss a dedicated headphone amp.
Get an 8 channel interface with USB and ADAT input (e.g. Focusrite) and another 8 channel mic pre with ADAT outs to chain them.
Microphones - this is highly subjective.
- Bass drum: I prefer a combination of a Shure Beta91 for the inside and another microphone for the front head, e.g. Shure Beta52A or some LDC (I'm using an Audio Technica AT4047). Assemble a DIY subkick from a 10-12" bass amp speaker, most expensive is a good DI box, covering the very low end.
- Snare: Earthworks DM20 (expensive) or Shure SM57 (cheap but awesome) on top, Shure Beta98 AD/C or some other good SDC/dynamic microphone on the snare side.
- Toms: Shure Beta98 AD/C (expensive) or Sennheiser E604 (cheap but great).
- Overheads: Oktava MK012 MP (awesome cost-benefit ratio). For using LDC as overheads you need a very good recording room.
- HiHat: some SDC like Shure SM81 or the like.
We could list a bazillion microphones here, this is just what I got great results with.
Oh and don't get caught in the audio plug-in trap. You don't need a ton to get the job done if you have a good room and good microphones.
Did I mention studio monitors yet?