I’ve a Yuba Go Getter bag on order (http://yubaride.com/webstore/product.php?id_product=12) – 85 litres should swallow plenty of shopping! I also got a couple of cam straps, so can strap boxes to the rack too.
For general day-to-day carrying, I’ve got a front frame-fit rack ordered, which I’ll probably stick a basket of some sort onto into which I can chuck my work bag and other small stuff. I’ve seen photos of bag-for-life type bags fastened onto the back with karabiners too.
The bipod stand is, I think, a Hebie (from practicalcycles.com). Really stable and much better than the generic one on my wife’s bike. I also got a steering stabiliser, but haven’t fitted it yet – it’s a spring that connects the fork to the downtube and stops the handlebars flopping about while the front wheel’s in the air when using the stand.
I’ll try to remember to get a photo of the rear dropout. I’d think it would be tight getting a disk caliper in there though, plus you’ve then got to get a hydro cable long enough to get back to it! A new fork would make a front disk possible, which is probably enough.