Last time I had an AVR project, I remember having to debug UART applications, and I found a nice little tool that helped me a lot, but I have lost it, maybe you know where I could download it from again.
This tool could plug into AVR Studio, and redirect it's UART output to the COM port of the computer.
However, I also installed a driver for windows that installed 2 (or 4,6, etc) virtual COM ports, and linked them together, so that 1-->2 3-->4 and so on.
I redirected the AVR Studios output to COMv1 and my opened a hyper terminal to COMv2, and thus I could communicate and debug my code without having to download it to the chip.
If you know a tool that can do the UART->COM port redirection, (the device driver is some microsoft stuff, I think I'll manage finding that) please write
P.S. I also would like to make a tutorial based on this, because I beleive it is VERY useful, and many newcomers (and I dare say that some non-newbies) don't know about this trick.