I'm a little confused about all these media centers and servers. Is there a simple solution where you have a stack of raid drives connected to a wireless device that can be accessed by and DNLA complaint device?

I.E. just a stand alone box with nothing but media in it that allows me to connect say my PS3 to it wirelessly as it would a PC serving out of WMP? something you would connect to a PC dump all your media on then unplug it stick it in a corner or closet plug it in and there you go?