I have almost the exact same setup, save for a 120 GB SSD. But everything you've said is correct. I would add that the setup is surprisingly straightforward and that the OptiBay product comes with great installation docs. Unlike 2007 and earlier Apple portables, this generation is pretty easy to crack open.
I love my 15" MBP configured as described. No, it's not especially light or sleek compared to a MacBook Air. But it's the fastest, most responsive machine I've ever used in my life. And the processor is a smidge fresher, so I feel better about obsolescence.
One tip if you're going to go the two drive route:
You can symlink heavy files that apps expect to be on your startup disk to your HDD. So in my case, I've symlinked my iTunes movies, iTunes U, iPhoto library, and a couple of other things and store them on the HDD. I don't touch these often and when I do, time isn't of the essence, so there's no point consuming my precious SSD capacity.
I love my 15" MBP configured as described. No, it's not especially light or sleek compared to a MacBook Air. But it's the fastest, most responsive machine I've ever used in my life. And the processor is a smidge fresher, so I feel better about obsolescence.
One tip if you're going to go the two drive route:
You can symlink heavy files that apps expect to be on your startup disk to your HDD. So in my case, I've symlinked my iTunes movies, iTunes U, iPhoto library, and a couple of other things and store them on the HDD. I don't touch these often and when I do, time isn't of the essence, so there's no point consuming my precious SSD capacity.