I think any commercial fire alarm panel could be adapted for residential use.
If you are looking for an addressable system, it will cost substatially more, however. The "cheapest" panel will be $600 and the smoke detectors will cost $50 a piece.
Most notification appliances can be ordered in white. I do not see them in my area because they are not allowed by code, but I know they are manufactured.
Some manufacturers to consider:
Firelite/Notifier (one and the same)
Edwards
Silent Knight
Peter
