What I've heard, the WAS MQ tests are quite hard, aren't they? Also Websphere MQ is a product which only few people have installed. I doubt if employers care much about if you have a certificate or a sheet for having past the test, you get for any certification. For me UML test is most interesting, but as its part of ICED you get no extra IBM Certified PDF, but only the sheet from Prometic that you've past the test. Or go for 255, though I think that it must be quite a boring test. Only problem is that you need a lot of memory in your box. With 1 Gig WSAD 6 is not the greatest fun.