I've been doing more research trying to find a suitable first digital SLR for myself, and I stumbled across the Olympus E-520 which seems good to me - however, on the online camera store I'm looking at I can't seem to find any Sigma, Tamron or Tokina lenses that specify that they have an Olympus mount.
Do Olympus cameras only take Olympus lenses? If this is the case would I be better off spending a little extra and getting a Canon EOS 1000D, and waiting a little while to get my 2nd lens for it?
Another question: do you have to buy flashes specific to your brand of camera? If I bought an Olympus E-520, would I have to buy an Olympus flash?
I'm trying to piece together as much info as I can so I can make an informed choice that isn't going to cost me more in the longrun. Any help would be greatly appreciated.