I am having my 3rd child in November, and tho, not sure if this will help you, I have decided to go with the Chicco Keyfit. I have just read soo many great reviews on the safety and comfort of the baby.
Also, with the Chicco, I think it is $180 (just the carseat, not travel system) at Babies R Us, if you get a 20% off coupon and save $36 bucks just right there. Also, not sure if you use credit cards or not, but my friend when she bought hers applied for the Babies R Us credit card and got another 15% off on top of that just to help offset the price of the car seat.
I look at it this way, baby spends most of their time in the infant car seat - wouldn't you want to be in something comfortable and safe??
Good Luck and Congratulations on your soon to be!!