Roush definately makes awesome engines. I was originaly looking at the Roush engine for my FFR coupe, but after doing some research (mainly on this site) I went with a company called "Performance Engineering" which is just north of Cincinnati (semi-close to you). Check out their web site at:
http://www.perfeng.cc/# The guy that builds the engines name is Eric, he is great to talk to and he will always make time to explain what ever you have questions about. Do a search on this site for performance Engineering and you will find more information. Eric can build you an engine with more HP for a lower price and will give you better "tech support" that a big company.
Hope this helps.
Dylan