Hi Iceman and welcome to the forum.
You seem to be well qualified and I'm sure you'll find something eventually,although it may take some time as there are quite a few people looking for work at the moment. The London Standard reported recently that 30000 people applied on the first day for 300 customer service vacancies on the underground which gives you some idea of the amount of people chasing vacancies.
The most important thing for you to realise is that it is far more expensive to live in the Uk than the Philippines and London is the most expensive of all, although you say that your wifes company is paying for housing and utilities which is probably the major expense in living in London.
To give you one example of the difference whilst in Manila I traveled on the LRT and my single ticket would cost 15 pesos a day in London a single ticket on the Tube will cost approx £3.60 (250 pesos)approx. So please do your homework before coming as your wife will need to be earning substantially more than I suspect she is earning at home.
Good luck to you