Your samsung only installed at 119 GB b/c ssd's take a small portion of the available nande (typically 7-10% and reserve it for swap space. Trust me, you'll be happy it works that way when you start filling up your ssd and it keeps performing the same way over time, and also helps the nand to last significantly longer.
BTW, standard spindle drives SHOULD reserve swap space as well, they get significantly slower as you get closer to the middle of the drive. Realistically on a spindle drive you want to keep 20-30% available to keep the performance at an acceptable level. On an ssd you want 10-20%, but most of the newer drives reserve a bit for you automatically, and intel actually just throws in some extra nand on some of their drives. I don't know about the other sizes, but the intel 320 series 160gb drive has 176gb of nand and only 149gb of usable space for the end user.
Edit: and your experience with win 7 pro isn't too different from mine with win7 home x64. I think I was at 32gb used out of 57gb total available before I even got started installing other programs.