The PCS MM2F/S-15 Multi-Module has four outlets, two unswitched, and two X10 controlled on seperate channels. Total load can be as high as 15A leaving you a bit over 400 Watts for the lights.
Another options would be to just put in two switched outlets. Expand to a 2-gang box and put a PAO11 ($13.69) next to the XPR.
I think you're looking for a PSC01 Powerflash Security Interface for your pool alarm. ($18.74)
The prices I quoted are from
[Link: homeautomationnet.com] He doesn't list the MM2F/S-15 on the site but he's a PCS dealer so he should be able to get it if you decide to go that way. Bill?