Renew all the subframe bushes while you're at it - regular rubber fine.
Braided brake lines achieve very minimal improvement - other than longevity. Rubber ones have a little give in them and expand a little in response to the fluid pressure absorbing a little of the effort you apply - braided ones not - so theoretically (although I can't tell any difference whatsoever - especially on a car with a brake servo) all the pressure you apply works directly on the cylinders and hence shoes....
The rear brakes only account for - as standard (from memory) c40% of the braking effort and shoe selection isn't generally critical - proper adjustment is. If you're hell bent on a upgrade get some quality - stress quality (and not ebay chinese nasties) minifin drums - the finned and hence enlarged surface area and outer alloy composition dissipates heat better and improves braking performance (again gains are minimal and it's questionable whether it's worth it for the cost)
The front brakes however IMHO are worth a look at - purely from a servicing perspective - for a touring car I'd keep on the best quality standard road pads you can get - Mintex used to do some standard ones that were really good but a quick browse on Minspares and I can't immediately see them - but they do offer Delphi ones - probably perfectly ok - just don't fit the race / fast road types (and if long distance touring pack a spare set)
The standard brake set up is fine if all components are in good order, on recent fluid and bled / adjusted properly......
The best prep (other than maintenance and servicing ) is to get alignments absolutely spot on - makes a huge difference to feel and responsiveness of the car - and hence the pleasure you get from driving it