Haha simon I've done the same with video gear. I have to admit I brought the 300D on impulse, its utterly brilliant, but I've just picked up a 10D now, so the 300D has to go.
I like your use of flash with the BMX very nice, and the Mr Bunk image is also a very good shot, oh and the Macro one is another haha. I prefer my photos to have a puropse and show technical skill and fast reactions. (These combined is what I feel makes good photos - and I hardly ever achieve this lol) It is of course a hugly oppionated subject (as is all art!) So I tend to prefer these to the more setup arty ones like the stairs for example, where you may have had a few chances to get what you were looking for. Fireworks is one think I enjoy taking photos of, its unpredictable to a certain extent but the results can be pretty cool.
As for my 300D I would like around £380 inc the lens.