i would never pay for legal adivce unless your case is really complicated, you can get lots of free advice from your local law centre, CAB and Immigration orgs like the excellent JCWI.
and it might be a good idea to get your wife to the UK before April, prob cost you more then and who knows what the gov has lined up, when it reveals its new Immigration plans...
lol

, ive read that there is a recommendation to the gov that the 'life in the uk' test cert, should be called a certification


instead...