Looks good, make it sturdy. Dont want all the stuff to come cascading down on your knees. also buy some wiring tools if you wanna repair computers.
The thinkpad seems a bit awkward to use, unless it is just a storage area, and you should make another i/o hole at the other end.
edit:
Bottom right corner. Shoopd.
There ARE round mousepads idiot. the old computer in my bro's studio had one, but it got old and nasty (kinda like the computer is now) and we threw it out.