jcsabolt2: those are two different handguns altogether. The STI is a single action automatic 1911 clone, the Para has its own DA only design, although they do make a regular type 1911, too.
The Para is 45 and the STI you are looking at is 40 S&W. If you look at the STI 45 auto, it is just a dressed out 1911 with all the bells and whistles. I would choose the 45 ACP over the 40 S&W.
I understand the Paras are pretty accurate and I think that from the posts I've read, the shooters who have them really like them.
If you are going to spend the $ for an STI, look to the Kimber - it may well be the better performer. But, if you get the chance for a range session with anyone who owns either, grab a handful of each pistol, shoot up a box or so of ammo and then decide which one you would prefer. HTH. Mikey.