People need to stop jumping on the newbies for not searching first.

Reprimanding him isn't going to stop next weeks newbie from asking the same question.

Anyway, ideally you should get into the machine that your instructor recommends.
If your going it by yourself, then the Raptor is the best choice. You can learn set up and other topics on www.raptortechnique.com
It's the most popular machine because of cost, performance.
For those who don't agree, show me www.evotechnique.com, or www.calibertechnique.com, or www.raventechnique.com
Raptor information is all over the web, and they even have a dedicated store! www.onlyraptors.com
Again, try and show me www.evosonly.com, www.calibersonly.com.....