Rez have you tried Project Zomboid?
[url]http://projectzomboid.com/blog/[/URL]
If you can get over that it's isometric 3rd person it is a decent start at a good zombie survival game.
Although I too like the idea of the type of game It would get boring pretty fast. Zombies would become a nuisance then a threat once you fight them off so many times. Then it becomes a game of finding good loot once you are adapt at basic survival.
PZ is what ive been waiting on for over a year now. I was in when the pre alpha tech demo was leaked, also helped test some exclusive builds no1 else got to download, cause at the time i was so interactive with the forums and the devs of the game.
i have to say, i was very very skeptical, seeing its top down views and ect, but it is deffinately NOT something u can judge by looking at screenshots and reading. reviews just wont do it justice. There is so much in the game already it's almost frightening.
the only real way i could say is to get your hands on that really old pre alpha tech demo, and give it a try! considering its an ancient prototype to what theyve completed so far, they have still only implimented a fraction of whats supposed to be in the game to date.
back on topic, i too would like to see this type of game play from a first person perspective, considering I am a hardcore fps lover lol there has recently been news of an arma II mod i think, that is more along the lines of what project zomboid is going for, but on a first person perspective... I just dont wanna shell out money for a game i dont own, and a mod i have to take a chance on based on third party information- i'd rather give it a try myself, like i did with zomboid.
If nothing else, maybe PZ or that mod could help you get towards what your looking for, and if so, PM me and let me know how it works out!