Re: Retail vs. Steam
Steam all the way. If you know a little trick, wait for weekend deals or price drop. I've saved even more than retail. My brother who prefers retail over steam and ended up spending a lot more than me just because he likes to have box and discs in hand.
Now that Steam supports Mac and you get free Mac copies from certain games which makes the deal even sweeter. Most retails don't offer that. Steam isn't going anywhere soon.
17-inch MacBook Pro: Unibody | Intel Core 2 T9800 @ 2.93GHz | Nvidia 9400M GT / 9600M GT 512MB GDDR3 | 320GB 7200RPM SATA | 4GB DDR3 PC1066 | Mac OS X v10.6 Snow Leopard | Windows 7 Professional x64
Desktop: Intel Core 2 Quad Q6600 @ 3.6GHz | ASUS P5K Deluxe/WiFi-AP | 4GB G.Skill F2-6400PHU1 @ 800MHz 4-4-3-5 | EVGA GeForce 8800 GTX 768MB | Western Digital Raptor X 150GB | Samsung 32" HDTV | Windows 7 Professional x64
Note: English is my second language so please bear with my grammar!