Hi, i more or less have the pi as my desktop "pc", thou i miss a few things i could not find a guide on that was successfull. I will list them in order of importantness:
1. Java.. without netbanking etc do not work. I use midori for browsing but can be talked in to something else if java works better.
2. Flash... many sites relies on it for not only graphics stuff but also something like calcing how much paint you need for a room etc.
Stuff like libra office and vnc viewer i got in place... so its mainly the 2 above... as for java its not only aplets on websites but also programs written in java. mainly i will be using an ide for arduino and picaxe
if i sould add something it would be help or a guide to slim down the install while still keeping the desktop. I have a sence that there are lot of things installed that i dont need and that are slowing things down