mmmmm food........
Of the energy bars, My personal favourites are the High 5 ones. You know the ones with the blue wrapper. They are chocolate and raisins. But they are very expensive so i stopped using them. As mentioned a very good alternative is the cereal bars. Kellogs make lovely mueslix bars. They go down well, as do special K bars.
One word of advice though. Be careful! You should try whatever food you decide on before you do the ride because you might feel some things give you stomach cramps. This is especially true if you are planning to push yourself. If youre just messing about then you might be ok. Make sure that you eat little amounts often to avoid gettin the knock. Bananas are good too....
Also, as for the sugars, jelly babies etc, you should maybe wait until the last 2 hours before gettin into those. But yeah they are nice!