Thanks for the responses. I will stay away from repping out on the deadlift, but I find that max reps really do help me on the other two lifts (i.e., bench and squat). Particularly, in benching where I find that my elbows hurt when I use heavy weight in the 5 rep range. I have never attempted a one rep max and probably never will for fear of injuring himself. When I stay in 10+ rep range my elbows feel great, no pain what so ever. The same for my knees when I'm squatting in the 10+ rep range. I also have to becareful of my groin so I squat using a narrow stance and don't go ATG.
As for the deadlift, it really is a bad lift for me as I'm fairly tall @ 6'2" with relatively shorter arms, but really long legs. My form also sucks almost like I'm SLDL. I'll stick to deadlifting 405 until I can comfortable do 8 reps. Then maybe I'll add a little weight.
I remember reading somewhere that football teams use max reps while benching 225 as a measureing stick of strength and muscular endurance. Any idea how many reps is considered good?