Having spent the last couple of days exclusively using 7 the following comments seem to be in order:
1) It seems to be faster thab XP, but that might be the way XP is set up.
2) I'm a webcam freak and there seems to be a problem when viewing some sites although I have the same add-ons/plugings etc. Some will only work if I switch to the IE tab some tell me access is denied which ever browser I use.
3) Double clicking on a desk top icon doesn't alllways open a program, you have to either right click and tell it to open, or refresh the desk top then double click.
4) Both browsers lock up completely on certain sites, but the OS reconises it and after trying to sort it out shuts the program down and compiles a report to send of to MS if you wish.
5) once you've got used to the admin stuff and the CP using slightly different names for things they seem to work better than in XP and much, much better than in Vista.
6) Colours are more vibrant than in XP which is nice for pictures (although setting up the monitor profile without a colourimeter may be a bit of a problem) but not so good on here as the colours are a bit "in your face" if you see what I mean. (no I haven't tried playing with settings) And monitor geometry is different so it needs setting up again.
Over all, a vast improvement over Vista and, with it's self repairing facility, an improvement over XP. will probably spend today tweeking it and seeing if I can get things a bit more 'normal' what ever that means. Time will tell