how long does it take to become a UK citizen?

hi,
i was wondering if anyone could comment on how long it takes to become a UK citizen [the application process, etc...]. I have ILR, have been married to a UK citizen for 4 years, lived in the UK for 6.

also, does anyone know the requirements for where you live during the application process? am thinking of spending some time in the states...

thanks in advance
mimsy

For those married to UK Citizens, the following qualifications apply:

• You must have been living in the United Kingdom at the beginning of the three- year period; and
• On the date that your application is received in the Home Office, you must have permanent residence/ILR in the UK; and
• During the three-year period you must not have been outside the UK for more than 270 days (approximately 9 months); and
• During the last 12 months of the five-year period you must not have been outside the UK for more than 90 days; and
• You must not have been in breach of any UK immigration rules at any time during this three-year period of residence in the UK.

More information about how to apply can be found here: http://www.ind.homeoffice.gov.uk/applying/nationality/