Yeah - lots!
Suggest if you don't have the quals for NATS cadetship then join either org as an ATSA/ATCA or whatever else they call an assistant these days and get SERCo to sponsor your training (you may have to push for it a bit) or (when I worked for NATS (CAA in those days)) for each year you did as as ATSA they knocked an A-level off the requirements.
SERCo would almost certainly bond you, but it woul still be heaps cheaper in the long run.
Luck matey!
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Once more unto the breach, Dear Friends...