Didn't go anywhere near Ipswich in the end.
While idly browsing electronics I found that the CEX in Bury St. Edmunds had a Panasonic digital camera to replace the one I broke last year at a decent price. Even better was to find that the Canon camera I never use was worth over half the price of Panasonic if traded in for a voucher, so off to Felixstowe to drop off the Canon and I've already received the trade in voucher.
Depending how timings go on Sunday with shopping, I may get the late morning train to Bury to get the Panasonic.