No I'm thinking to do all the electricity my self, and get (a very) little discount on the price. Then I can do the electricity right in the first time with a nice domotica system

Now I've some questions to make a calculation how much time and money I need for the installation:
- Which hardware system for the basic modules is a good choice? (X10 two-way?)
- Which software system is a good start? (HomeSeer?)
- How much time will the hardware installation take?
- How much money will a basic installation cost?
Some wishes for the installation:
- Using a remote control for lighting/tv/audio
- Using my iPhone
- Maybe a touchscreen between the kitchen/living room?
I know these are very basic/general questions but I hope someone can give me an example of an installation which equals my house.
I have some experience with installation in vacation-homes with Xanura hardware/software, installing all the hardware and programming/configuring the software.