Power tool advice?

[rack04]

I'm in the market for a compound miter saw, air nailer, and air compressor for general household repairs. As a new homeowner I'm constantly learning about home improvement projects. Until now I have managed all repairs using the few tools that I own and tools that I have rented and/or borrowed. The first investment I made was in a 4 piece 18V Lithium tool kit including compact drill/driver, circular saw, reciprocating saw, and flashlight. Basically I'm looking for advice on which brands/features/etc. to look for and things to avoid. For example, I borrowed a miter saw from a co-worker to cut crown and base. It didn't take long for me to understand why it's important to have a high fence when cutting crown in position. Also, installing crown without a air nailer is a huge inconvenience. Thanks.