Ok, there are some beautiful speaker monitors made by M-audio you can get. They are about £50 a speaker and i recommend getting 2 (to make 2.0). They have great frequency response and many studios i have been in use them:
http://www.m-audio.com/products/en_us/DX4-main.html
For microphones, use one SM57 for snare and high-hat (angle it so it picks up the snare and high-hat at the same time. Use an AKG 112 for the bass drum (use a resonant head with a hole in preferably). Overhead condensers would be ideal, 2 maybe 3 will be good. I have used two drum overheads which worked perfectly and they are the Behringer Two-mic pack of condensors retail about £35. SM58 for the vocals (if recording live) or if you're multi-tracking just use the SM57 you have for the snare and high-hat to record vocals (no circuitry difference between the two microphones just the 57 is directional).
The M-audio Delta 1010 it a 10 in and 10 out PCI card (unless you get the rack version). It's cheap - about £135 on ebay. Sounds great? Wrong. It has unbalanced inputs, meaning they are not balanced and have terrible interference. I recommend the Terratec Phase 88. It has a breakout box with 8 ins, 8 outs, 1 midi in and 1 midi out. They are balanced jacks (or so i recall) and it's not much more expensive than the m-audio delta 1010:
http://audioen.terratec.net/modules.php?op=modload&name=News&file=article&sid=8
With a sound card like this you will only need a mixer for stereo recordings (mainly drums, sometimes guitars if you want left and right channels). With the drums you can either use a mixer to mix down the 5 or so microphones you have on the kit into left and right channels (stereo) for the sound card input. If you do get a mixer i have a Behringer Eurorack mixer which works nicely (although the EQs arent very responsive but thats much better done in the software).
Bass guitars usually go direct in and sound very nice (through a tube pre-amp mind). A tube pre-amp will give you a lot of universal performance through many different instruments (Behringer Tube Pre-amp with presets is about £45).
That's all i can think of right now. I'm thinking of getting a nice audio interface for recording soon and for me its between the Delta 1010 and Terratec Phase88 - will probably go with the 88 because of it's balanced jacks.