I bought from Carrera a few months ago, 2.8 P4 with Radeon 9700, 17in TFT, 512mb RAM, plus a few other bits and have to say so far so good (I do lots of video stuff and write to DVD's). I have to say that getting the TFT was an inspired choice, I am really impressed with it.
Printer, have used hp since I can remember, only ever had one break and that was replaced within 24hrs, they are versatile in producing good quality text docs and pics.
All in ones - not recommended, jack of all trades master of none.
Remember when reading about peoples experiences with pc's that you always hear the bad stories and hardly ever the good ones. I guess for every bad report there are 10 good ones.
Hope this helps