hey pls help!!!!

hi
this is dhwani here.
im currently in my final year diploma in electronics and telecommunication.
can ne1 help me wid those.....
im in search for.................................
1)a home networking kind of a project with which u can control various appliances.
2)a remote controlled toy car using infra red.
3)laser beam wireless communication.
it wud be rili cool if ne1 provides me wid the circuit diagrams and the links ne sites..

pls suggest me any other gud projects.