Anything is good to get into the sport really, an old spyder would do the trick... You can find them everywhere, and they shoot just fine as long as you take care of em.
Unfortunately tho, my friend is arrogant and his ego is too big for him to go out there with a crappy spyder, because he has researched paintball so much, he knows of their noobiness and refuses to use it, the idiot.
all last summer i played with a spyder and an egg because i didnt have a job. i fucking loved it. Its hilarious when kids with egos get wrecked by kids with spyders.