you could start with the manufacturer's web sites. or you can go to (insulin pumpers) http://insulin-pumpers.org/ and at the bottom of the page there is a list of phone numbers and manufacturer web sites.
all of the commercially available pumps are good. don't go nuts with trying to come up with the magic formula for which one's the best. Most people love the pump they have and will tell you it's the best for some reason, and the reasons are all good.
my experience has been great because I have a unpredictable schedule. I don't eat at normal times, and I often travel out of my normal time zones, etc. I have days where I sit in front of a computer and other days where I am climbing and crawling around construction sites. I was going crazy with shots because the long acting was either way too much or way too little for any given day if things changed.
pumps aren't automatic, and they take a little more work and diligence than shots. there is a great book called pumping insulin Amazon link http://www.amazon.com/Pumping-Insulin-Everything-Success-Smart/dp/1884804861/ref=sr_1_1?ie=UTF8&s=books&qid=1263079617&sr=8-1
Reading the book is an even better idea than going to the pump web sites - because it describes how they all work. then you can go look and find one in that you like.
and oh yea, i picked a minimed 722