Why not another astra/insignia, being as you seemed to get on fine with what you have, before it went sad that is.
Something like this - I like the colour....
http://www.autotrader.co.uk/car-details/202502028664794
Fookin ell Jimmy.

£9000 for a 10 year old Insignia.
Ready to go tits up. 
Regardless of what anyone else thinks about value for money, it fits the brief, is in budget and is clearly the kind of thing Ste likes as he's had similar before.
Also, I think a lot of people need to take another look at how much cars actually cost these days. I did a search for 7yr old estate cars, up to 50k miles, 1.8l minimum, auto, (cleared out the dacias and skoda fabias that really arent estate cars), not written off. The cheapest thing that came back were passats and leons at £12-13k. Like everything else, cars just cost a shed load more than they did a few years ago. When an astra estate with a poxy 1.2l engine is £25k+ new, they're bound to cost a fair bit second hand.
Its totally mad, but its the reality we now live in.