AirContractors are a good bet, they pay very well. and you may as others have said, not have to relocate. the draw back is they tend to pick those with more hours on type than the others. You work 2 weeks on, flying night freight around the UK and Europe. Then 1 week standby (from talking to AC pilots, you'll mostly endup working working this week to!) and one week off. The other drawback is they have removed the toilets from their ATRs so you have to use a 'gel bag'
. I suspect the ATR fleet will be replaced at some point by either 737s or possibly the new ATR80x which rumour has it will be a big fuel efficiant turbo prop.
Aurigny (bases in Guernsey, Channel Islands for the ATR72 (ATR75s by 2010) and Southend UK for the ATR42) This company will take type rated low hour joiners. Very nice people to work with. The workload is light and is the best bet if you enjoy island living. Flying the line is however quite demanding with flying into very busy hubs as well as short x-wind runway ops into Guernsey. The flying is a mixed bag but mostly standard routes, but also some interesting charter work all over europe, and some night freight. basic take home pay is better than you'd get starting with say flybe but some living expences such as rent are high. Interviews take place approx 2 months apart.
Aer Arann is in Ireland, Very, very high workload. Are replacing older aircraft with new ATR75s. Like Aurigny they need high standards of flying to cope with the sort of work they do. getting a command can come very quickly. Pay is more 'ryan air' in the way you earn your money. but good non the less. Ireland is a great place to live but can be very expencive also. The currant advert they are running is for Captains but worth a try.
Both Aurigny and Aer Arann tend to lose a lot of pilots as they turn out good airline pilots, these pilots tend to be highly prized by bigger airlines when they can't recruit many pilots with pure jet time. This meaning you will get looked at sooner or later, You must pass the sim and line training and this means you'll have to keep your skill levels very high as neither will carry you through.