I'm not sure if there is a compatable card reader to be used with the ps3 tha tis out yet. And I realy do not think a wireless adaptor will come out for the 20 gig, since that's really the main difference between the two. From what you are saying, you don't have high speed and will upgrade your HD. THen the only difference is the card reader, which i dont think a lot of people will have use for besides transfering files from ps3 to ps3 or putting photos/music on their ps3.