Great advice above

My advice is go to a few online communities (Baby Carriers Downunder, KangaCollective, Baby Wearing Buy Swap Sell [facebook page] etc) and read the threads, post all the questions you can think of and get an idea of pricing of diffetrent carriers, before committing to anything.

Also if you try one carrier and it doesn't work straight away for you or bubs, don't be immediately put off. Some babys take a while to like carriers, some only like specific carriers; sometimes you may have issues with some carriers, but there may be others that suit you better. Depending on bubs size, different carriers might be preferable too (ie, stretchy wraps are great for small babies, but not supportive enough for bigger ones; different wovens have different qualities, with silk and bamboo blends usually being better for babies, but linen and hemp blends being supportive enough for toddlers and preschoolers too). You also need to consider when you intend on mostly using the carrier, as this may influence your choice.

Then again, you may be like me, and never come across a carrier that you don't like (which can actually be a problem, as your stash tends to grow, but it is sssooooo hard to let any of the old ones go).