OK, time to bring you chaps back to reality.
CdG cost approx. GBP1.9bn, for a country which has been operating similarly-sized, indigenous carriers since the 1960's. The RN hasn't operated 'real' CV's since the 1970's and hasn't built any since the 1950's. Does anyone believe we can build TWO similar ships for only GBP2bn?
{BTW, arguing that CdG is more expensive 'cos it's a nuke is a non-starter -the reactors were already developed for the French SSBN programme and think of the fuel savings.}
Factor in the additional costs of FCBA and FOAEW, add a considerable amount for delays, cost overruns etc. Factor in the running costs in fuel, spares, crew, escorts, RFA's, etc.
A firm commitment to CVF is easy for this government to make because no real money will have to be spent on the project until 2005 or so and, incidentally, the promise of CVF made the otherwise swingeing cuts of SDR palatable.
However, come 2005 and the decision whether or not to proceed with CVF (and FCBA, FOAEW, supporting escorts & RFA's), which by then will be having a serious impact on future budgetary planning, and, well, I think you get the picture...
Oh well, maybe then the UK will come to a realistic appraisal about its place in the world (but then again, such things haven't shattered our delusuions of grandeur in the last 50 years or so).