I was planning to avoid X10 because of worries of line noise, but I just spotted this panel:
X10 SC28X Wireless Voice Dialler Security & Advanced Home Automation Controller http://www.letsautomate.com/12469.cfm?CFID=2206304&CFTOKEN=9d6833-a3b705a5-22fa-4de5-906b-53335be074da
which claims to also support 2 standard wired sensors. At GBP 70, this seems to be the cheapest way into using LinuxMCE for a home alarm system. Any comments as to whether this panel is likely to be recognized?
Thanks in anticipation...