I've had a 303 for four years - lovely frame, good choice! I also have it set up with the Rc40(41?)XCAM forks - the ones with the max travel at 150mm. I have mine pretty much permanently at 130mm though - very occasionally I'll dial them out to 150mm for some of the steeper, rockier trails in the peaks etc.
Second what everyone else has said re:
- cracking at the seat cluster. Get a long post! Even though I could, according to the min insertion mark on the seattube, get away with a 350mm post, I use a 400mm for piece of mind. Going on the number of frames on the thread that Onzadog mentioned I thought I had the only one left that hadn't snapped!
- chain suck [disclaimer]I know frames don't cause chain suck[/disclaimer]. Mine suffered really badly with this, chainstays seem to be made of cheese. There's an old thread of mine where it got so bad it wore a hole through the the chain stay without me noticing (or, more likely, not checking regularly enough). Anyway, i had it spot/flood welded (can't remember the proper term), 18 months ago and, touch wood, it's been fine since. I've had it set up as 1x9 for over a year now, so don't worry about it anymore.
- Pace lack of customer service - the only reason I wouldn't put any more money their way.
It's a great bike to ride - have taken mine all over (in the peaks loads, wales, dales, NY moors, moab, fruita etc). I don't find it quite as stiff as some, quite happy riding it all day, although i did wuss out and buy a thudbuster for when we did the coast-to-coast!
Oh, and it's clearly better in black 
Paint finish, as you've probably already seen, isn't the sturdiest - it chips really easily. No pictures of mine, sorry, as they're on fotopic and that seems to be borked at the moment.
