Maybe some here can provide some guidance. After going through a lot of testing of a Palm, talking for 90 minutes with the lead Exchange person in our IT department, and doing a lot of thinking Ive really settled on a WM5 device. So Im trying to decide which one. The options appear to be the MDA, Treo 700w and Dell X51v. Are there any Im missing? Any thoughts on the relative merits of those three? Im aware of the network differences as well as the fact that I will need an external modem on the Dell (I have a Nokia 6310i with and EDGE account). Thanks.