They did already have one but it had a homemade lighting system on and you had to unplug everything to get the lid off and clean it, so I decided to treat them to a new one.
So this is my £5.50 bargain, an Aquastart 500. It's 65 litres. I've got an Eheim Pickup filter that I got for £5 arriving soon and I'll bung loads of the plants from my 60 litre in there, and my friend needs a home for some of her guppy babies, so it'll cost next to nowt.
I'll post another photo when it's set up.