outdoors supply

Hi
I am in the process of building a shed which I am going to need an electricity supply run out to. I am going to be running various heaters (ceramic, heat pads etc) and light bulbs in the shed so I need a good electricity supply that isn't going to trip every 5 mins. What is the best way to do this?
Please note I am a complete novice to electrics (I can wire a plug! ) so laymans terms would be appreciated!
Thanks
Sam

Probably not something that should be attempted by a complete novice, but if you want to find out more about what's involved, read these:

//www.diynot.com/forums/viewtopic.php?t=3526

//www.diynot.com/forums/viewtopic.php?t=3360

//www.diynot.com/forums/viewtopic.php?t=3770

//www.diynot.com/forums/viewtopic.php?t=3703

//www.diynot.com/forums/viewtopic.php?t=4051

//www.diynot.com/forums/viewtopic.php?t=4931

//www.diynot.com/forums/viewtopic.php?t=4546

//www.diynot.com/forums/viewtopic.php?t=4189

//www.diynot.com/forums/viewtopic.php?t=4201

//www.diynot.com/forums/viewtopic.php?t=4097

//www.diynot.com/forums/viewtopic.php?t=3681

//www.diynot.com/forums/viewtopic.php?t=3542

//www.diynot.com/forums/viewtopic.php?t=3005

//www.diynot.com/forums/viewtopic.php?t=4526

//www.diynot.com/forums/viewtopic.php?t=4138

//www.diynot.com/forums/viewtopic.php?t=4124

//www.diynot.com/forums/viewtopic.php?t=4174

//www.diynot.com/forums/viewtopic.php?t=3532

//www.diynot.com/forums/viewtopic.php?t=3142

//www.diynot.com/forums/viewtopic.php?t=3179

//www.diynot.com/forums/viewtopic.php?t=3230

//www.diynot.com/forums/viewtopic.php?t=3148

//www.diynot.com/forums/viewtopic.php?t=3060

//www.diynot.com/forums/viewtopic.php?t=2840

//www.diynot.com/forums/viewtopic.php?t=4538

//www.diynot.com/forums/viewtopic.php?t=3841

as you say you are a complete novice, to be honest i wouldn't even think about it. what is even a couple of hundred pound against a life?