Limo Question

Ok so we are now just deciding that we want limos. Originally, we thought we didn't need them because we are have a ceremony and reception in one place. We changed our mind... mainly because there is NO way I am getting in our jeep with my wedding gown on. Also, most of the wedding party is staying in the hotel near the reception so just to be safe, and avoid drunk driving, we will get them. Can anyone tell me anything about them? Prices, packages, anything? Is it silly to get the BMW truck? It looks so pretty.... and what about a party bus? Any info would be fantastic!! Thanks!