BOOSTTOY,
I tried the cut/paste technique on my exhaust to save a few bucks, and ended up spending way more than I thought. Everything I tried with the stock setup (Removal of cats/mufflers/etc...), just sounded louder, not better - actually worse. The only way I could describe the sound would be a Honda Civic with a loud muffler - I hated it!! I finally decided to shell out the bucks for a Corsa system, and love it!!! Not to loud, not to soft. Much quiter at cruising speeds, and reduced resonance in the interior (almost nonexistent). I also have a set of High Flow cats from Sean Roe. I paid $750 for a used system (1 month old) from Jon B. at Parts Rack - 2.5 inch. From my understanding, the 3 inch sounds very simular - a little deeper and a little louder. For just over a grand, I would say get the 3' system and don't look back. Also, if you don't have access to a lift, do yourself a favor and let a professional perform the job. A supposedly 2-4 hour installation took all weekend for me and my jackstands!! It is not as easy as you think (it never is), unless you have a lift, torch, reciprocating saw, etc...
P.S. - Corsa's website does a good job of depicting the sound. To me, it has a very exotic sound when on throttle, but a deep muscular sound at idle. You can barely hear the exhaust on the stock system when idling - which always p*ssed me off. Good Luck!!!
P.S.S. - If you delete the cats, expect the sound to change. My system actually sounded much better with the cats on. Don't know why???