I own 3 Toshiba labtops (2 of which are laptops) and think they are wonderful. I got my first tablet 4 years ago. I am typing this reply on that machine (a Toshiba R15-S822). The R15 series of Toshiba was a good bargain-around $1000-$1100 with a nice feel and pretty good battery life on the standard battery (I get just under 3 hours in the clinic). The only downside is that they are a little heavy for a laptop. This model is no longer manufactured but I'm sure the subsequent Toshiba tablets are equally sturdy, albeit more expensive. (I use one tablet in clinic and a second at home. The third Toshiba is for family use/Internet access)
There is a nice website called medicaltabletpc.com which can give you some feedback from others. I'm not sure how free they are of commercial bias, but I haven't sensed a ton of it. (I'm sorry I don't know how to set up the website as a hotlink)
2 other tidbits: There is a neat little program called RitePen that lets you write anywhere on the screen and not just in the text box. It only costs $29 and is decent. You can find the link for it on the medicaltabletpc.com site. Secondly, in my area (Arizona) many of the drug reps use tablets, and you might consider asking them about how reliable their machines are.
Finally, I just bought a true touchscreen computer which is also like a tablet. It is the HP IQ775 and I plan on integrating it into one of my exam rooms. It is an all in one type of machine. You can read about it on the HP website and Circuit City and Office Depot display it so you can try before buying (although the salespeople aren't that knowledgeable about this machine.) It may be something to look at just for an alternative. It is pricey ($1500 or so unless you find a store going out of business like I did) yet it is a real powerful machine. Best of luck.
