Thanks Tetraqueen, i've yet to check out the lid but i know exactly what you mean having seen the lid on the Rio 400. I can live with it though if its the same on the Vision, Juwel tanks are well priced so i'll put up with that.
The filter sounds like an excellent idea, which seems promising, i'm going to add a Fluval +3 or +4 internal filter as i'm going to be keeping some seriously messy fish. Also i can completely clean out 1 filter at a time without destroying the entire bacteria colony as the 2nd filter will retain its bacteria and i can just alternate cleaning the two of them.
Thanks again