I'm actually not too keen on fish and they have been harder to maintain than I expected, but I think now that the initial setup is out of the way it's easier and I'm enjoying them.
As for going for going for fish, I saw a clown fish and a 'Dory' fish and I wanted them, but the cost of a heated tank and everything else would have added about an extra £100, so I went with cold water fish instead. Two of my guppies are gold so they are called Donna and Amy. I also have a bright blue one so it's called Doctor