What is a good fold up bike to buy?

Sadly my last bike was trashed by vandals and I have an insurance payout of 拢180 coming through.

I want to get a fold up bike that I can actually take into work and not have to leave locked outside.

What would you reccommend in terms of models?

A company called Bike Friday makes some nice folding bikes. So does a group called Dahon. I'll warn you that good folding bikes are not cheap. They are generally built to higher end specs and will likely cost 4 digits.

I have a KHS folding bike, paid around 250 bucks (US)
works just fine for me

Get an old Raleigh twenty, nobody will look twice at it, alternatively there are some decent ones for around 拢90. See the link

My Son has a folding bike. He has used it for just over a year and he payed about 拢250 for it new. He is now selling it for 拢130 ono. He required the bike to travel from Glasgow to Edinburgh on the bus with a cycle ride at each end. He lives in Glasgow Scotland, therefore, if you live near there and are interested just answer.