milton keynes - for less than £600K you can get a decent 5 bed house near the station, nice garden, park opposite.
commuting in takes between 30-70 mins depending on fast or slow trains, lots take about 45 mins and then you end up in euston so straight down on the northern line to london bridge.
Easy access onto the M1 for driving into London - used to take us about 1 hour 15 to get back down to the City - (albeit not at peak times!) so if you stop off in north london then you can do it in an hour or less.
some fab schools locally if you are living near the station - worth it as saves hassle and expense of driving to the station and parking.
shopping very easy - choice of massive tesco/sainsburys/waitrose/asda/lidl/aldi/morrisons etc as well as local shops around. Plus a big shopping centre with things like john lewis, m&s, debenhams, next, tkmaxx, all the usual stuff. And there's an ikea which can be handy. They're building a big new m&S 'out of town' store at the moment which isn't out of town so much as away from the centre - but next to asda, ikea, the MKDons football stadium and will also be next to the new first out of town primark that is also being built.
I know people deride the roundabouts - but actually driving around is incredibly easy (especially if you are used to london driving) and so much easier than somewhere like oxford. also has the advantage that all the 'through' traffic is kept out of the housing areas and there are lots of nice dual carriageways to whizz you around the city.
I've just looked on rightmove - these houses are all in the £550-575K price range and all take less than 5 mins to walk to the station (across a park) or 5 mins to drive to the shopping centre or most of the supermarkets. Catchment area for ofsted outstanding infant/junior schools (haven't got as far as needing secondary schools yet, but we when we moved here the local ones were supposed to be the best in MK) or lots of people go to the grammar schools in Buckingham or Aylesbury
www.rightmove.co.uk/property-for-sale/property-37574300.html
www.rightmove.co.uk/property-for-sale/property-34226467.html?premiumA=true
www.rightmove.co.uk/property-for-sale/property-33686824.html
or a cheaper £500k 4 bed house
www.rightmove.co.uk/property-for-sale/property-31500028.html?premiumA=true