My daughter's boyfriend has had one of these for the past year - bought it brand new and is very pleased with it.
A good site for car info is
www.honestjohn.co.uk - look at the links on the left and you can find a review of any car you like. ( Click on Car by car breakdown - and the Focus range comes as Highly Recommended)
Insurance? Well I got a good deal for my daughter from
www.confused.com - you just enter your details once and they contact lots of different insurers and email you back with the quotes - we saved over £100 on her second year's insurance. You might consider putting someone older on the policy as a named driver (a parent perhaps?) as when we did this on her policy it decreased the premium by over £200.
Happy motoring!
PS They are good for fitting child car seats into as well!