Sean, In my opinion a website while its a nice touch and looks good on the stationary and on the side of the van etc is not a priority, but as xpw said they are prety cheap to ste up and maintain so its probably worth having
But I would expect that you would not get a large amount of work from it, and if moneys tight right now an ad in your local paper or church bulletin may go farther towards getting new work
If you do go the website route keep it simple , people want to know who you are ,where you are , what you do and a rough idea of what your prices are
save the glowing logos etc for when you are a bigger company