I've had Steam for 2.5 years now. I don't have Half Life 1 or 2. And I didn't get them free.
I DO have two Half Life Mulitplayer games that Valve game me for free (Lost Coast? and something else). I've never played them. In fact, I'd like to delete them from my Steam library, but can't.
CPU: AMD Athlon II x4 620 Propus (OC’d to 3.4 GHz) | Mobo: MSI 785GM-E65
Mem: GSkill 2x2GB 1600 DDR3 | VC: Sapphire ATI Radeon 6850 (1GB)
Boot Drive: Kingston SSDNow 40GB | Data Drive: Seagate 750GB sata drive (32MB buffer 7200rpm)
Case: Coolermaster 912 HAF | PSU: Corsair CX430
OS: W7 Home Premium (64 Bit) | Monitor: ASUS 236H 23” (1920 x1080)