Colectomy

I am a brand new member of this site and I was hoping to get some perspective on what I'll be going through in the coming months. After a long bout of tests, through both my PCP and Gastroenterologist, my doctors are recommending a colectomy (subpartial?) for a problem I have with colonic inertia which is further complicated, because my colon is very long and has 2 complete loops.

I've been surfing the net trying to find a trusted source telling me what to expect in the prep and recover of this procedure and thought this would be a good way to get some experienced info.