I just started looking for a new HDTV but would like something that won't be obsolete in 6 months (since I want to invest in a PS3, etc). But it seems as though most 1080p sets do not accept a 1080p signal - they just upconcert to 1080p. Are there any sets currently (or coming soon) that will have this? I prefer DLP tech but I'm willing to look at all options. Thanks!