I take it the plod didn't bother lifting prints, then? I know the bit about drilling out the lock on the back door suggests pre-planning and "Going equiped for theft" but it's surprising how many of these scrotes don't think to wear gloves. Some friends of mine got back home and surprised the ne'r do wells when they were part way through the window; no gloves. If these varmints can be pinned down to one burglary they'll probably confess to loads more as well.
Not that I want to worry you but if you've been burgled once then it's statistically likely that they'll try again. In your case they drilled out the lock, which suggests they knew the house was empty but then they just grabbed random stuff, suggesting that they were disturbed before they were finished. Best put your Pace and Stumpjumper in the loft for the next few weeks just in case, and if they come back while you are at home you can put them in the loft too! Leave them there a week or two, don't worry about the screaming, peoples neighbours don't like to interfere these days so they'll just tell themselves it must be the telly. Then a day or two after it's gone quiet tip them into Ladybower Res, with some heavy stones. Job done!