Scroll down a bit and look for the "Buy Both and Save" icon.
If you want, you can also just get Doom 3 by itself for $38.
http://www.amazon.com/exec/obidos/tg/detail/-/B00006C2HA/
If you want, you can also just get Doom 3 by itself for $38.
http://www.amazon.com/exec/obidos/tg/detail/-/B00006C2HA/