I'm a technology professional looking to buy a tablet pc to replace my current laptop. I currently own a ultraportable so size and weight are important to me. I also value responsiveness like a desktop. In laptop mode, I use a lot of business applications like Word, Excel, PowerPoint as well as development tools like Visual Studio and a database server on my machine. In tablet mode, I'd like to use it to take notes in meetings and design sessions. I also travel with my laptop. I've seen the Toshiba models and like the size of the 200/205 better than the R15 (14" feels very bulky to me), but if there's not enough horse power in the 200, then I'm willing to compromise and move up to the R15 or M4. The HP tc4200 looks like a tweener and may be what I'm looking for. Which is a better choice for my needs (include configuration suggestions if appropriate) or should I consider other models? BTW, I have no budget limitations. I just want the right one. Thanks for the help.