FX traded in a Self Directed IRA

I have traded FX for 5 years in taxable accounts. I would like to use an IRA for the tax deferral or tax free advantages. If you have any experience with any particular FXCM approved Custodial Firms for such an account, I would appreciate your sharing good or bad. As well as present fees associated to open and maintain the account. Are their any incentives to open new account?



At present Advanta I know is offering a client referral program voucher for his type of account.



Thank you for any information you can provide.