I mainly play with people who refuse to switch to 3.5e. In fact they want nothing to do with 3.5e! Since every d20 product written since June has been written for 3.5e, this leaves me with the uncomfortable task of converting everything if I want to use any newer product. I recently traded in some books and brought the Dawnforge Campaign setting. I haven't read through it thoroughly yet, but it looks awesome. However, I have the difficulty of converting it back to 3e before using it.
Some of conversions will be pretty simple such as changing feat and skill names. Others are more difficult such as classes, spells, and monsters. Is there anywhere I could find good advice on the differences between the editions, and perhaps away to convert between the two?