I decided to do mine myself, purely on the basis that I don't have £2k+ to get it done professionally, and I want it back on the road.
I bought a small compressor and enough paint for the whole car for about £250. I'm doing it in stages, as firstly with 3 kids I only get a few spare hours here and there, and secondly by concentrating on one panel at a time I don't rush it, and make sure I get the prep just right.
So far its gone ok - its never going to be nearly as good as a professional, but I'm not building a show car - I just want it to look reasonably presentable.