where can i get motors/gears to build my own machine?

im tryna build almost a replica you can say...heres the video of what im talkin about http://www.youtube.com/watch?v=PvUJto4FRts ...but im tryna build one on a much bigger scales.. using 1000 watt light and only 4 plants about 3 feet tall.. where can i buy motors/gears etc. to make this happen?

thats pretty cool I never seen anything like it. Looks like your plants are doing well in it.

lol no those are not my plants..but he's yeilding 1.2 pounds per 430 watt light.. he puts 16 plants inside i believe...these units cost 2k per unit..so im trying to build something like it..thats works the same? anybody know where i can gte motors/ gears and things of the sort so i can build somethin like that