I second Cam's thoughts on the anchors and here is a side option:
Yes on the Delta. Best anchor we have had. I would keep a Fortress (http://www.westmarine.com/webapp/wcs...allpartial/0/0
) as a storm (because of how it comes apart and can stowe). Outside of that, all chain. The only thing we use a rope rode for is lunch hook or light conditions. As far as the weigth, I find most boats are under-weighted in the bow I wonder if Cam agrees??). Most of the weight seems to be in the stern and I have seen many boats where the stern sits noticeably lower than the bow. This is not neccessarily a bad thing, but I would be suprised if the extra weight will compromsie that much.
As far as the CQR: No. A piece of junk. Keep it for a stern anhor or something. I, like Cam, have had poor experiences with it.
As far as the Rocna, etc... I have no first hand experience.
Instead of the second roller, use a large 5 gallon bucket in the chain locker. On a boat that size, you should be able to get most of the rode in there, if not all of it. You can use the rest of the locker for your primary. This is the poor-man's version of a divided locker. We have a second roller, but when we make a passage we will often throw the hooks down below in the locker or bilge anyways and lash them. You don't want an anchor coming off the roller offshore.
Everyone has their prefernces on anchor and locker, etc. You are only getting mine with real life exposure. And by the way, the only anchor on my boat that is sized to the chart is a CQR that came with the boat. I would have never bought it (as it is stainless too????#$!@!). Some people have more money than sense. Everything is oversized at least one to two sizes. But, I do a have a windless. I would not want to tote that thing up by hand, especially with all chain.
Does that answer your questions? Take care.