Can Someone Help Me Plan my project

[antony]

i would like a sensor when i walk in to
notice me and when i walk in play my
music,and turn my bedroom light on.

I would also like a switch to time my fish
tanks on and off at certain times.

I would also like a switch to start my
coffee machine.

I would like two seperate switchs where it
can turn on my television in my lounge and
bedroom

i would like to run this all on harmoey on
my pc or a remote control.

what would i need, like the correct
switches etc and how much we looking at and
is the sensor thing i want easy to do?

Antony