Size on disk: 263GB - all downloaded since December Edit: 72 installed (inc 2 demos + 1 mod), 1 installing, and 14 uninstalled.
Big. I uninstalled Garry's Mod and all my Garry's Mod content the other day. That alone freed up around 56GB of space.
49.1GiB for me, with 203GiB of backed up games, I've only downloaded about a 1/3 of my total games so plenty more to come down my ADSL connection, I have 163 games according to steam, Thanks holiday sales!
68GB, with.. some games installed. Big ones would be... Borderlands, Crysis Warhead, Company Of Heroes + expansions. My general games folder (including Steam) comes to 202GB though.
Mine's only 46.GB with 14 games and one demo installed, but that's only because I don't see any point in installing more games than I have time to play them, and my Internet connection is fast enough (and unlimited) so I can pretty much download any game I want within a few hours.
You're lucky, I get ~100KB/s on my Steam downloads. That plus the fact the most times I don't have a couple of hours to wait if I want to play something plus the free broadband we have atm plus my new F3 means I install everything
I don't have a steam folder much less a steam account. With that said my Oblivion folder is a whopping 30GB alone.