I started buying things when we found out the sex at 19 weeks, so no its not too early to start. Like Sarah i buy things whenever theres a sale on..

So far the baby stuff we have is:
* Plenty of clothes! (0000, 000, 00).. including all in ones, socks, bonnets, singlets, shirts, pants etc.. alot of my clothes my sister gave me from my nephews who only wore them once.
* Bibs
* 2 boxes Newborn nappies, 1 pack Infant
* 3 packs bum wipes (came as a 3 pack)
* Cot (from my sister)
* Cradle (from my sister)
* Car Capsule (from my sister)
* Baby Bath (sister)
* Cot light
* Bedding inc sheets, doonahs etc (from my sister)
* Blankets
* Baby wraps (from my sister)
* Pram
* Bouncer
* Nappy bag
* Baby Bottles
* Dummies

Theres still a few things like nappy cream, bath stuff and oils etc that ill buy as i go along and I'll probably buy the maternity pads and nursing pads a little closer to the date. I just buy as i go so that at the end of my pregnancy and once bubs arrives i wont have to go on a mad trip and buy everything, plus i wont have as much $$ when i finish work.. also saves you some $$ buying when the sales are on.