The places you've listed aren't exactly noted for low house prices, Mahonia!
What about joining us here in Suffolk? Yes, there are some very expensive places (e.g. Southwold, where a tiny beach hut will cost you at least £80,000 and a mid-terrace seafront house costs around one million pounds) but there are much cheaper areas as well.
Bury St Edmunds is a really pleasant town, with rail connections to London via both Ipswich and Cambridge. Woodbridge is smaller but equally pleasant (with rail links to London via Ipswich). Felixstowe used to be 'stuck in a time warp' but, while still retaining much of its charm, is now rapidly becoming 'the place to be seen in'. (It has good transport links to the county town of Ipswich, with the train taking only 25 minutes and offering connections for the 70 minute journey into London).
Chris