The main thing is to try to avoid blix-based kits. I use the Fuji 5L kit myself; while it's the same stuff that runs in minilabs, it's packaged & designed for home use without starter & replenishment. You just make up a batch and use it a few times, running the developer a little longer each time.
Start with whichever kit you can reasonably get your hands on. Seriously, don't bother with buying separate components until you're running significant quantities of film. Buying separately means you need to worry about 5000 different little product variations (RT/LU, LORR, etc), replenishment, starters, different replenishment rates and a whole bunch of other crap that you just don't need to worry about at this point. The quality won't be any better than buying a good non-blix kit like the Fuji Press or Rollei Digibase.