Title animations seems to be all the rage right now and I had the opportunity to complete a promo clip for a client recently that uses a lot of them. That, and plenty of stock footage clips. 

I've had to deal with a lot of 29.97fps video lately and getting what is essentially NTSC clips to play smoothly inside 25fps (PAL) timelines have proven to be a bit of challenge. There's a number of workflows out there but the one that has worked the best so far uses Avid's Fluidmotion effect to do the conversion. Fluidmotion has become a real "Swiss Army knife" inside Media Composer for me, doing everything from slo-mo, freeze frames and now frame rate conversions.