Advice on a new case

Well after splashing out on a new PSU for my ageing PC, I'm planning on getting a new case too. There are several I've seen within my budget but I'm open to suggestions.

The ones I've seen are:

Beantech Igloo 1 (aluminium case) and only put this here because I've seen it for £30

Coolermaster Cavalier 3 (Seen it in PC World and very impressed with build quaility and finish) however, after reading reviews have concerns about lack of filter on front fan & no grill at front for air to pass through leading to unbalanced enter & exit of airflow.

Thermaltake Soprano Read reviews and seem similar to coolermaster but with filter at front fan.

Enermax C-527 Seems a great case, not so sure about the sliding covers but reviews states they are solid and stylish.

I'm not really into lots of flashy lights as I think it's tacky but if it's minimal then I'd consider it.
If there are no covers for the 5.25 bays then the case needs to be biege/silver as my units are beige/silver. Otherwise it'll need a door.

Looking for a minimum of 3 5.25 bays and one 3.5 bay. Will need at least 2 HDD bays and ATX format compatible.

A 12" rear fan is preferable.
My budget is really no more than £50. I saw the raidmax ninja for £70ish, but now I've ordered my PSU i don't think it's worth getting just for the case. Looks great but been told front part is mesh so not good as I'm trying to avoid mesh parts as I live in a dusty area!

Any advice would be much appreciated.