I currently have a R22-100 DVR and a Std Receiver in a second room. I am wondering which equipment to upgrade to. I want to be able to add an external hard drive for additional storage if I need to, which resulted from me changing from a standard DVR to the R22. However, I cannot watch HD on dermand programming with it. I have read that directv can, in fact, turn on the HD; but won't unless I have another DVR on the account. I currently have an installation appointment for tomorrow, and was told they will be bringing an HR24 or HR25. I am now considering whether I should just go to the genie. Basically, I want to have more storage, and be able to watch HD on demand programming....can anyone recommend the best course of action? I read there are often problems with attaching the recommended hard drives WD My Book AV 1TB (model WDBABT0010HBK-NESN and WDBACS0010HBK-NESN) Seagate 1TB (model ST31000SCA109-RK and model STAP1000100) Seagate 500GB (model ST30500SCA109-RK) I'd appreciate any thoughts on which DVR and/or hard drives would be best... Thanks!