jstme, I think yuo might have the only way, problem is justifying working on my AM stuff while trying to do my normal job lol.
Forget anything that involves breaching IT security / acceptable use policy. In almost all fin services companies, it's instant dismissal these days.
Especially as most of them are slashing headcount right now, don't give them an excuse.
I used to work in Information Security - if an employee started bringing in an unauthorised laptop or trying to tunnel round existing controls, they would be hauled in front of the boss and asked a LOT of questions. The first assumption would be that you were planning to commit fraud / steal data.