Rewiured, may I also recomend an alternative should the Douglas not fit the bill. I have used a Lutron softswitch120 panel a few times. It has an onboard astronomic timeclock, and you can wire up to 32 wallstations to recall scenes or just toggle groups of loads off and on with it. I haven't had any problems, one is in a setup that sounds like yours, front lighting, a few interior loads, etc, it all switches off and on daily. YMMV, but I believe I got the 8 circuit unit (the "mini") for under $800, check out:
http://www.lutron.com/products/pdf/367-860_lowres.pdf
