Paint Sprayer - Purchase and Use questions/tips

[Max T.]

I'm closing on my next project in a week. A small 2-bed/1 bath ~850 sq ft house we are gutting to the studs. I will be subbing out most of the work but also putting in ~2 months of my own labor. While I have done my fair share of DIY - more than most but less than others - I've never used a paint sprayer before. If I buy one and use it to paint the interior, parts of the exterior, and possibly new unfinished cabinets I'm thinking it should pay for itself.

So - what to look for when purchasing? I want to save money but I also want to buy something that will work well with minimal usage/operating headaches. So I'm thinking it will be something priced middle-low. It will probably be a long time before I use it again (if ever) but it will get a lot of use on this renovation.

And what to keep in mind for operation? What are the tricks and tips? Anything I should know about keeping it clean? Back in the day I used to paint all of my rentals but I hated it. Painting was one of the first things I started hiring out.