I still really miss the smaller headed drivers of yesteryear. I pulled out my old steel-headed Titleist PT driver I played years ago and looked at it. It's smaller than a modern 5-wood! If you're going down the modern tech route, but want to retain the feel of a smaller driver, I'd urge you to check out the Cleveland Classic. It is huge, yes, but the deep face gives it a smaller top-down profile. The paint scheme is just fantastic to boot. It doesn't feel as ridiculously oversized as some other offerings out there, and it plays very nicely as well.
I'm playing the R7 425 TP and I like it a lot better than the larger sized drivers that I have played with since I've been trying out new drivers. I know it's all in my head, but I just feel like I'm swinging a huge mallet with some of the larger sized drivers.