Mate, I went vegetarian myself about a month ago. It's hard but doable, but im going to compromise where i'll eat some organic red meat once a week with a couple good bits of fish twice a week, then the following week eat one piece of good fish and eat organic poultry twice a week. That way you're eating red meat once a fortnight and poultry twice a fortnight, but still adhering to mostly a veggie diet. Plus its harder to get all your amino acids from just vegetarian sources and I hear your iron levels can drop after awhile.
You can get some pretty good Meat free burgers which are basically soy based and most of them will have a high protein content. Havent tried the wonders of tofu yet.
I posted about this in the diet section a few weeks back, if you go in there, there was some good links from some helpful members.
EDIT:
http://forums.steroid.com/showthread.php?t=428687 go there, some highly helpful stuff from some of the board members, very insightful.