I love the functionality of my 510. I have movies and specials going back almost 2 years but am running out of room. I have transferred a lot to DVD using my desktop Pansonic DVD recorder, but I would like to keep everything on the 510. Is there a way to either place a larger hard drive in the 510 or transfer everything to a computer hard drive? With the prices of very large hard drive and RAID arrays going down, I would like to ditch my DVD recorder and have everything on a hard drive. Any suggestions would be greatly appreciated.