Where should I start? (I'm a noob)

I'd like to read about Cap during the war where he fought the Red Skull and before he got frozen. I'd also like to see how he and Bucky got frozen, and maybe learn how Bucky became the winter soldier and what cap did after he was unfrozen.

I know some these moments occurred in the avengers comics, but is there any reboots explaining these events? I really love Captain America and would love to get into his comics (And the winter soldier comics), but I really want to learn a bit background on them. I don't just want to jump into the new ones as i'd be lost.

Please tell me which ones I should buy and why. I know there are comic book fans out there who have the information I need.

I would subscribe to the Marvel Digital Comics Unlimited service that Marvel has to offer; thousands and thousands of classic comics available for subscibers.

You can start with Captain America Comics #1 from the Golden Age of comics (1940's). That is how I started.

With the Marvel NOW! launch of 2012, you can start with Captain America #1; you don't need to read comics in chronology in order to understand them, in other words, you can jump into any comic book and read any classic comic book without getting confused.

Do some research and you will find the story arcs that best interest you; I'm new to comics and I'm rotating between series trying to see what I like best, but I have an eternity to decide, so I will enjoy my time with whatever I'm reading at this moment.

Good luck!