The easiest thing to do is to use a coupon for the first month. Another option would be to setup a discount. Both are contrib modules.

You sound like the perfect candidate to give the recurring payments module a ride. Basically, it provides a framework for enabling people to add recurring payment options to their gateway modules. With it you can add a product feature to the registration product that can specify an initial charge date and recurring billing specs. Then you'll need to write the code in a payment gateway module using a hook in the module that passes the info on to your payment gateway.

There is no admin screen to handle the cancellations or anything like that... so it will require a good amount of customization. I just couldn't fathom a way to get it done in core without spending all my time on it, so leaving it as a framework that operates on a simple hook seemed like the thing to do.

You'd need to implement hook_recurring_fee($order, $fee) in your module which receives the order and the fee information as arguments. More documentation on this will be posted, but in the meantime you can check out the function uc_recurring_recurring_fee() in uc_recurring.module for an example.

Hi ltg,

Just stumbled across your post here...

I think you can do this pretty easily now: use the uc_reccuring module to set up a recurring fee that starts however many days or months after checkout that you like. Use the uc_cim contrib (http://www.ubercart.org/contrib/2537) I put together to store the credit card information with Authorize.net so that you can charge credit cards at a later date and for each recurring payment. It gives you a lot of flexibility.

Let me know if you see something missing here or if you need help...

Best,
Chad