In reply to jack01:
I bought a VW LT35 109 LWB last year (same as a Sprinter, so not part of the VW 'cult' as such) and I have to say I am very pleased with it (reliable, relatively fuel efficient for size etc.)....although it could do with a 6th gear. I paid just shy of 3 grand for solid van with 11000 miles on the clock.
Since then I have spent about £2,000ish kitting it out, with full insulation, fridge, full gas cooker/oven combo (can do a full roast!), toilet, diesel heater, shower, fixed bed, running water etc. and I have to say having the extra space, facilities and the ability to stand up is a luxury not to be underestimated....especially with the tendencies of British weather...It also means, whilst travelling, you are pretty much self sufficient. This saved me and the gf a lot of money whilst poncing about France this year....
I suppose I am of this bias, as I live in my van pretty much full time...but it is definitely something to think about....
Also, I would advise against a Vito, they seem to be real rust magnets....
Renault traffic, Vauxhall vivaro, Pegeuot Partner etc...seemed like pretty good options when I was hunting out smaller vans last year....