I ended up getting a basic chain alignment tool, a cheap version of the Motion pro one. Even it doesn't have much room to go on to the sprocket, it was clamped against the chain. I also checked the wheel alignment with a straight edge against the wheels. The rear wheel was not aligned properly - it wasn't the worst I've seen, but the straight edge was out by about 15mm at the front, and the chain was visibly not straight with the tool. So I've aligned it all now. Bike feels a little different. I think we get used to compensating for things like misaligned wheels, and when they're straight we have to get used to it again. I've got enough trust in the chain alignment tool now to use it to make sure things are aligned. It's a pity the laser monkey doesn't go on to the sprocket, that looks like a really cool piece of gear. Guzzilaz, do you mean there's not enough room for the chain monkey to go on? I was wondering about that. Also, I didn't have any problems with the adjustors. I used an old suzuki tool kit 12mm for the nut near the axle, and an open end for the 13mm on the front. That was tight, but I just managed to do it. I think if you bought a cheap 13mm spanner and ground some of the meat away from the outsides it would work quite well.
Hows the weather in England lads? I was in Portsmouth last year, in June, and it was glorious. Isle of Wight festival was pretty cool in the great weather.