hvlp sprayer has it pros and cons. It helps paints wall easier and quicker and cleaner. Hvlp is recommended by professional and used by most professional then regular paint.

HVLP Sprayers are able to handle both exterior and interior paints, that's why they are HVLP sprayers you know! Back in my day we only had HVL sprayers and those can only handle exterior paints.

Hvlp spray guns are available at both Lowe's and Home Depot. Lowe's sells single hvlp spray guns, for 40-50$ while Home Depot sells an entire kit for 60-70$

I have bought an HVLP spray gun also and this is where I went to get more info on my product: http://www.purplesagetradingpost.com/sumner/techinfo/HVLPspraygun.html

You can get a great deal on a HVLP Spray Gun Kit from your local hardware stockist, although you may have to order it in. Failing that, you can try Amazon or eBay.