Im waiting for 650D announcement until i decide on my first DSLR: if it is going to have a new sensor, ill probably get it, if not, i will most likely take used 550d (cheapest one with the same sensor) and a good lens.
I wouldn't bother waiting, no new camera will compensate you for the shots that you will miss in the meantime. If we were all expecting the 650D to be a quantum leap in performance, then you might have a reason to hold off buying, but generally Canon do not introduce their latest technology on the 'Rebel' bodies. Buy a body now that appeals to you, be that Canon, Nikon, Sony or whatever.
My second piece of advice, if you think that photography will be anything more than a passing interest, is to buy the next level up in the range (of whichever brand you decide upon). I made the mistake with my first DSLR (a 450D) and within a year wished that I'd gone for a 40D or D90 instead. It isn't a big difference in price compared to the improved ergonomics and performance that you get in return. O.K. if you're really skint I can see the reasoning for an 'entry-level' model, but I'd still be tempted to recommend a second hand, higher spec model from the previous generation in most cases (I wouldn't go too old though -30Ds and D80s are a bit on the dated side now).
Thanks for your thoughs.
I thought about that too, but the most important thing to me in a camera is (will be) the IQ. I dont need lots of fps or weather sealing (although all of it, together with better AF would be nice, and i like buying the newest gadgets). And as 7d, 60d, 600d,550d all have the same sensor, they will (should?) give the same IQ given the same lenses and conditions. Id rather invest in better lenses (as everyone is telling that to newbies - i am starting to believe it

)
I even though of used 5d mark2, as they should be getting cheaper now, but its a little expensive with decent lens (and buying 4year old piece of electronics havent settled down with me yet..

And 5dm2 as a first DSLR seems a bit too high (?) (I've been reading books/magazines/internet for about 3 months now, getting to know how photography works - manual setting of my girlfriend's bridge camera doesnt seem strange to me anymore

)
The actual deadline for me when to get camera is middle of June, because then i will have a trip to Spain, and i would really want to take my new camera with me.
How would you invest ~1000 pounds if you wanted to get camera+lens+all the accesories (bag, cards, tripod etc.) (think UK prices too

)? (or at very least, just camera+lens)