Hello danishdiver,
I owned an Ikelite housing,for a C8080,and I never had a problem with it,until I decided to clean the metal bolts holding the flash bracket,at the bottom,and I cracked the moulding overtightening the two nuts holding it. Anyway,my fault,not the manifacturer. As for your question, there is a site called 'digideep.com' that lists all sorts of housings for each single camera(or most of them),which I found very useful,but in any case comparing the Ikelite housing to the more expensive ones, I'd suggest you think of what use you're going to do with it. Aluminum cases are more rugged,and more expensive,and in my opinion they are better suited for professional use. Surely they can last a lifetime,but one little disadvantage they have to the transparent material housings is that you cannot see water leaks(until it's too late!).
I also own two Ikelite strobes(DS50 + DS125),and for my photography I found the DS125 way too powerful(and heavy);yet for macro purposes(and playing with the power switch), it may be ideal. As for prices, I've noticed that housings,in general, are in line with camera costs: the higher the camera cost,and the more you pay for the housing. Last,but not least, where to purchase: if I'm not mistaken Denmark is one of the EU country where custom duties are heaviest? Should you be able to avoid paying taxes importing from the States,I'd suggest you look in the net for a good buy,otherwise you can expect a difference of 20% + from those prices: as a reference you can try 'adorama.com',where Ikelite housings sell at least 100$ less than from the manufacturer itself.
Hope you find the info useful. I have a question for you,though: you're mentioning a PT023,Olympus housing for your camera. Is this the same PT023 housing,also suitable for the C8080,Olympus?
Regards,
guglioq8