Hi all and thanks a lot for your replies. I have to say I find most of them very useful. I am still considering carefully what to do as the prospect of having to come separately it's kinda upsetting as I fear the idea that my partner might struggle in finding a job there.
I do understand the level of illegality which surrouds the whole issue, however I also find Mystica's comments very refreshing.
I am not looking for a place where I can talk about the fact that I am married to a guy among work colleagues - I don't do that in London. I am not looking for a place to go holding hands. We do not share affections in public. We are very reserved. However we are always together which seems to me not to be an issue as men stick to men in Arab Countries. My fear is only that to have the police searching my flat or something on that tone. As long as I am free to be who I am at home that's all I am looking for. I don't feel like I will hav to compromise at all as long as I can be myself in the privacy of my house (in this I mean a normal family life even it can sound schocking to someone). However this is still an issue I want to look into. So I guess I should not disclose the info to my employer in order to get some help on the visa right ? Even if it's a Western employer... Thanks !