Not saying you don't have to get it, but the raptors really didn't offer much for the consumers according to several test sites. I don't think many people have raptors at all...no one that i know at least. Now we have the SSD's and they have been proven to offer blazing speeds...although they are still expensive and very new.
Its really up to you, but i don't think the raptors are worth it in terms of price/quality.
Oh and pretty much any Lian Li case is good (from what I have heard from others) I also don't recommend the raptops, old technology with a higher price and very little benefits (in some cases they run slower). Also since they are 10k RPM instead of 7.2k RPM I am pretty sure they will be louder.
I also want one but its just.. I like my cases straight, sort of like the Antec 1200 - which I plan to get. I could try and put 4 intake fans on the Antec 1200 side panel, never tried anything like that before though. Oh and I am not a fan of a door for a case, seems kinda dumb to me.
I have the Stacker 832 (same case, different front door) and it's a great case but it is pricey. Your case will only be as loud as the parts you put in it. If your really concerned about noise, check this site out. http://www.silentpcreview.com/
Well if you plan on overclocking that i7, you need a CPU cooler, and the i7 coolers are pretty damn big. I mean if you could save up some more cash the Stacker is probably the best case for air cooling. Some other choices are the Antec 300 and 900, which are both high quality and good cooling cases.