This is no problem. The hardware you need is an X-10 to IR transceiver. This device receives the X-10 IR signals from the Pronto and sends corresponding X-10 powerline signals.
The other piece of hardware you need is an X-10 wall switch. These come in many varieties. The type I recommend is made by Leviton. It has a "soft start" feature that allows the lights to gradually ramp up when turned on either at the switch or with the Pronto. It is a "true rocker" switch which means it feels and acts like a rocker switch. You press the top part of the switch to brighten, and the bottom part of the switch to dim.
Then download the X-10 CCF from this web site and customize it for your lighting setup.
I hope this helps.
RCI Automationrciautomation@csi.com[Link: ourworld.compuserve.com]