ghosty,
IMHO, any base outside of London is pretty good. LPL,BRS,BFS or NCL have good route variety, -700 flying, and don't seem to work as hard as our London bretheren. EDN and GLA have mainly domestic routes and fly -300s. (One possible consideration is that the rumours have the Scottish bases changing to Airbus soon. If you are in a base that converts, there is no bond.)
As to how holidays work, well, this year they didn't!! There was an enormous c0ck-up with allocation. How it's supposed to work is that with the 5/4/5/2 pattern, you take 4 periods of 5 days off (so you get 11 days off in a row). we also have an optional exta 5 days as "Guarenteed days off" which in theory they then take back as extra work days. It is not the best system in the world, but is probably the only real down-side to the company.
Yes, that is a good estimate of income (possibly conservative during Summer).
It's not for everyone, but personally I'm very happy at EZY, and there aren't many better jobs on offer, particularly if a fairly quick upgrade is a priority.
Welcome!!