Hello again!
The tail light is indeed a separate purchase, and is a 2009 Busch & Müller Toplight Flat, powered from the SON dynamo up front. Good little unit, with twin reflectors and a surprisingly bright LED in the middle. It has a standlight that keeps her lit for a few minutes after stopping, which prevents you getting flattened whilst waiting at lights. Other than that, no flash modes, no on/off button, no batteries... You move, it lights. You stop, it counts to 180, and turns off.
All this simplicity makes it affordable, lightweight, and robust. Worth noting that the casing isn't entirely waterproof, and that whilst it filled on LEL (which was extreme circumstance to be fair), that didn't seem to bother it.
Hardest bit of the installation was running a cable (I used speaker wire) all the way from the front wheel to the top of the seat back. It terminates with two spade connectors, that allow me to quickly lift the aeropod off, should I need to keep it with me (cafe, etc). From experience, however, the most valuable / portable thing I carry on rides is the 'bent itself, so the pod only really comes off when I need to pack bike and self into a car. Worth keeping those spade connectors pinched tight, as if they do come loose you'll lose the rear light and gain a wire in the rear spokes...
There's a little hoop on the back of the aeropod for clipping in a light, and as the B&M only comes in a rackmount I used (yes) zip-ties. For a permanent installation, I'd route the cable through the bag rather than tucking under it, but I haven't got around to this yet. Initially, I didn't want to make a hole in the bag if avoidable, as the pod is sold as 'waterproof'. With the benefits of hindsight, I'd make that 'extremely water resistant', and note that whilst it held out longer than every item of clothing I owned, was no match for Scotland.
The little mirror is another B&M product, cyclestar Art 901. They make a few variants, and this is the 'long stem' version. Information on everything I'm saying at
http://www.bumm.de/index-e.html
Incidentally, if you do end up fitting a mirror, try to keep it as close to the bars as possible. The temptation is to have it angled outwards as far as possible (like a wingmirror on a car). IMHO, this ends up with it being knocked out of position by parking / doorways / fixing punctures / lousy overtakers / etc. Instead, use it as you would a car's rear view mirror, so that it stays within the protective cradle of the cockpit.
Goodness. That was more than I meant to write. Sorry!
