After you get a DAW up and running it's time to get some recording done.
The cheapest way: M-Audio Audiophile 192, Rane MS-1b, SM58/SM57 mic. Pro recordings can be done with this. $450
The step-up: M-Audio Audiophile 192, Grace Design 101 or True Systems P-Solo or FMR - RNP "really nice mic-pre", FMR RNC "really nice compressor" (optional), SM7b mic. $950w/o compressor, $1150 with compressor.
Million Dollar sound for as cheap as it gets: M-Audio Audiophile 192, Black Lion Sparrow, any great mic pre (Trident S20, UA 610, Brent Averill 1272), FMR RNC "really nice compressor", Bock Audio 195. $3,000 [the only thing I might want to upgrade here eventually would be the compressor to a LA-2A, a 1176, a TubeTech, or a Distressor]
All of these set-ups will give you pro quality recordings. Just different levels of pro sound. But remember that how good your recordings will sound has everything to do with how you use your equipment and how good your mixing, eq, and mastering is. If you record everything perfect you can always ship your tracks to a mixing and mastering engineer untill you learn how to do it yourself.
Other needed equipment. Monitors, cables, headphones, and a headphone amp. Check my list of equipment at great values in one of my other post.