With UK cask ales, I find that cloudiness affects the look much more than the taste, unless you can actually feel pieces of grot floating around in your mouth, which isn't nice. People say that drinking cloudy cask beer gives you the shits something terrible the next day, but I haven't found that one cloudy pint causes any problems.
They are an acidified aqueous suspension of collagen derived from the swim bladder of certain fish, along with sodium metabisulphite. Does it sound like something you want added to your beer?
Sadly can't do either cos i'm on hols from tomorrow morn.
On September 21 though there is an IPA festival at William IV where each brewer contributes and IPA based around a specific colour (no idea how exactly this will work..)
I'm tempted to reach one and get drunk before low end theory tonight but pretty broke so not sure it's a particularly cheap way to drink. Wish there wasn't an entry fee as well as having to pay for the booze.