Car seats and Strollers!?!?!??

Jessica
Hello Ladies,First off, happy new year and I hope everyone and there babies are super healthy! I am not due until the end of July BUT I just started looking into strollers and infant car seats. Some strollers come with the car seats and others don't. I am a first time mom so I'm not sure where to start. Does anyone have any sites they recommend for baby gear? Also, have any of you bought a car seat or stroller car seat combo already? I'm thinking of getting a jogging stroller but more worried about the car seat for starters....Any insight would be helpful!!!