This was my take on making the insulin pump decision earlier this year.
and this is my review of the first 1 1/2 months using the 630G
Follow my blog because at the ed of the month I should have a blog up with a statistical review of the accuracy of the Dexcom and Medtronic CGM's (I am wearing both currently for the comparison).
Bottom line, I really like the 630G except, for one thing, it is 1 1/2 times the weight of the 530G. I am very impressed with the Medtronic CGM. How3ever looking at accuracy I suspect the tow sensors are about equal or the Dexcom is slightly more accurate. Both companies will have new sensors shortly but in reality, both are very good. Still, the statistical analysis of my experience is not yet done, so it is too ealry to say much of anything until it is done.