That was the first thing my wife did, Changing her name in her passport.

We were about to start the form filling for spouse visa so, rather than delay the inevitable (unless your wife's got other plans up her sleeve for a later date) she thought just as well get it done.

It also shows commitment which could help if her visa application was border line.

Strangely hawk mentioned his ex wife never changed her surname...neither did mine....strange that

Btw...I also registered our marriage in the UK...its not a requirement, it just adds fuel for your wife's application.

It cost around 45 quid, that was 2 years ago last June..

That will be especially helpful when applying for her ILR.