i was wondering what the system requirements would be to run the addons if there are any and sorry if this is not the right forum to post this question on

IMO this would depend on your system and how many addons you plan to run.  In most cases I would think if you can run the game (ex:WoW) you should be able to run addons just fine. I don't believe there are any set min. system requirements.

ty you really helped me out and id just run quest helper,atlas,recount

oh forgot i have windows xp

The short of it is like Cam said. If you can run the game, you can run addons. You may experience a bit of a performance hit if you start installing a few dozen addons, but a handful shouldn't be noticable.

thanks you guys really helped me out