ok, so seriously. if you're serious about it, get a Digidesign 002 Rack (~$1000). That comes with a 32-track version of Pro Tools, pretty high-quality I/O (meaning 100,000 times better than your soundcard, whatever it is), and will get you started. Anything you make can be imported into a real recording studio's Pro Tools setup, and vise versa (great way to record some stuff at a studio and finish up at home).
also, understand that quality mics and mic preamps are expensive. if you really want GOOD sound, you're looking at $600-$3000 for a good mic, and $500-$3000 for a good mic channel strip (mic pre, compressor, EQ).
edit: there are other software/hardware options (M-Audio makes good hardware, Cubase and Logic are good software), but your chances of compatibility with other studios are slim and the plug-in market is smaller. The Pro Tools hardware/software combo has been the industry standard for a long time.