If you don't care about money just get a 1V. If you think it is too expensive, get a 3, which is 90% of the 1V for 1/3 of the price. If you think that's expensive get a 30V/33V for £50-70.
As for service, the 1V/3/1N are still easily serviced. The lower models can probably still be serviced and in any case, they are so cheap you could just get another one.
All EOS cameras will take your EF lenses (but not EF-S ones) and all EX flashguns will work with them too.