there are two main things that u need to look out for
1> boot up program listing
start>run>msconfig> startup
see what is running at ur start up .. uncheck the programs which u dont want like the real player updater.. acrobat reader speedup .. office startup etc ...
2> install bootvis ( google it )
optimize the system
3) get a coke chill out
i guess this will solve the lappy problem and coke will chill ur overheated brain