Bobert, I wonder why you never offered a picture of the spiders.
It must not be a serious infestation.
If the spiders are hairy and grey then it is probably a wolf spider.
I have wolf spiders in a shed that measure two and one half inches (which is unusually big) and capable of leaping three feet or more.

One thing to NOT do is use a bug bomb. It will kill off the predators of the spiders and allow the spiders an enviorment to quadruple its numbers to thousands of spiders in 3 weeks.

They could be hobo spiders which are not particularly poisonous but are very septic when they sink their fangs into peoplem somehwat like the Komodo dragon. Hobo spider bites would cause cellulitis and demand medical attention.

The reason why spiders have venom is to paralyze thier prey so they may bind and digest their food with ease. A wonderful spider TV show is called MOnster Wars and is probably available on you tube.