Believe me, thats nothing compared to the amount of computers my dad and me have. Even my sister now has a desktop and a laptop. Some of it I do admit aren't required, while others are. I tend to have spares hanging around doing nothing and I am like "What do I do with this? Oh, build another computer out of it." and thats exactly what I did, including a tablet PC which I brought and came with a screen, motherboard and something else (All working) which I put together out of other spare parts brought off ebay, built 2 aspires, etc.
As for long depot, not really, there's the AC Modern Depot IIRC, which holds a 12 car train, Bloodnok made a spline version of the hornby kit depot, I can't remember the KUID off hand though, although there maybe others.