Re: Baseboard Trim
Definitely a finish nailer should be used. As for a gun, IMHO it will depend on how much you're going to use it. Prices range from around $30 (Harbor Freight ) to several hundred dollars for name brands like Senco, Bostich, etc. A mid-range gun would be a Rigid (Home Depot ) or Craftsman. I personally like to buy quality guns that operate more smoothly over their lifespan than to go cheap, but cheap does have it's place.
Finish nail guns typically shoot a range of nail lengths, the most common is 1" to 2-1/2". Brad nailers will shoot nails of a smaller diameter (that means a smaller, less noticeable holes ) and shorter length. As to the length of fastener that you'll need, that will depend on how thick the trim is and how thick the drywall is. Typically it's 1-1/2" to 2". You want to penetrate the wood framing of the wall at least the depth that your molding is thick, that is, if you're installing 1/2" x 2-1/4" colonial, then you'll need a nail that will reach through the 1/2" molding, through the drywall (typically 1/2" ) and at least a 1/2" into the framing. In this case I'd go with a little longer nail because if there are irregularities in the wall, a longer nail will hold the trim better and tighter.
Hopefully some of that made sense.
I suffer from CDO ... Its like OCD, but in alphabetical order, LIKE IT SHOULD BE!!!