I've always used Knolls light factory for flares for post product in AE and such, the key here though is that the lens flares in Bryce will actullay emit Light like the sun, so you can have multiple suns etc. It still needs tweaking for sure, but we have a wish list of having a lab for it, but there's so much to absorb and to get done, its a daunting task but it will come in time.

Do atleast one thing a day that scares the hell outta ya!!