K.
I LOVE my Kangaroo Korner fleece pouch. It's so warm and cozy for winter (and pretty good for warmer weather too) plus it's ADJUSTABLE. This is key, since your baby will grow and you don't want to have to buy a new sling when he gets bigger. If you're similar in size it also means you and your husband can both use the same carrier. They're really well made, too. Plus, you can sit your little one facing in or out when they're small (but big enough to hold up his head - so probably 3 monhts old). We used ours from the time our son was about 4 months - 12 months old (it was the middle of the summer when he was younger, and we hadn't discovered it yet). Now he's a little too heavy to carry over one shoulder and we use an Ergo. Anyway, I highly recommend this sling. It's great. Plus, WAHM-made.
You can also check the reviews at www.thebabywearer.com - they're very helpful.