Hey Taff, it worked for me
Bought a Quest, got all the mounts from Ram-man; picked up a V8 CD from someone on the board, and took the whole lot out their respective boxes a couple of weeks before I left for Barcelona. Used it once in the UK prior to the trip south, and it all worked with no problems
Guido: Here's my recommendation.
If you want a small unit which also has its own battery power (i.e. you can run it powered on the bike and battery powered off the bike), then the Quest is a good bet. You can't get them new, so unless you can find one secondhand, you're looking at a Quest 2. The Quest 1 has some limitations on memory, but I'm just back from London - Barcelona - Millau - Belgium - London, and didnt have any problems.
If you want a physically bigger screen then you're in the 2610 / 2720 / 28xx units which also appear to be more all singing - all dancing. There are other differences; someone else can help out here though
All the above are waterproof & vibration proof.
For brackets, as you're in London, take your brand new GPS over to Ram-man at the
GPS Warehouse (if you're buying new then this is where to get the unit also). Steve will recommend the brackets and mounts you need and you can see how it all fits together there and then (it really is straight forward).
For audio, get yourself to Maplins and buy a couple of
mono earphones. Two minutes with a hacksaw and file to trim the plastic down and you have something that should comfortably fit inside your lid, and keep one as a spare.
The map software comes with the unit. If you buy new (assuming you go with Garmin), then you're entitled to the current map software, version 8, regardless of what version happens to be on the CD in the box. Garmin will send you a DVD once you register, but it takes time to arrive, but someone on the board here will no doubt lend you a V8 DVD to get yourself upgraded in the meantime.
I cant recommend this stuff highly enough - its radically changed the way I tour on a bike, hundereds of miles on farm tracks, minor D roads and forest roads. Brilliant
cheers
jon