I am getting directv on the 29th. I am also installing a network throughout my house this week. Ethernet in every room, 2 in master, 3 in living room ran to Gb switch. I am working on the network currently and was installing leviton jacks in all rooms. 1) my coworker's son is a dtv tech and advised me not to run two RG6 for the hd-dvrs because they are SWIM?? compatable. this helps in costs of leviton products, but what is SWIM? 2) he also advised me that they are giving hr23 and hr24 to all new customers now. I ordered two HD-DVRs. will I be able to network these through my switch and view recorded programs from one dvr on the other? I am new to dtv, according to my coworker's son, it is 1000 times better than cable, but I am curious to find out everything I will be able to do. I am also getting a basic receiver for my son's room. Thanks!