Sound like that might be a possibility or even a better option for you, especially with the canal route you can use. No need for a CBT, protective gear (would advise a cycle helmet though), tax, insurance, mot etc. I have one and they are great - they basically assist your pedalling power and you can chose the amount of assistance you require. I bought a kit for around £500 and converted an existing bike I already had.Know absolutely nothing about them! I think work do a scheme to buy them. I'll have to look into that as I know I'm a lot more confident on a bike like that, and in fact half of my journey home can be along the canal.
They should all be able to do a 30 mile round trip between charges. The Bike2work scheme if you have it at your firm would be worth using.