To further clear this up...
"1080p is pretty much only useful right now for HD-DVD, Blu-Ray, Xbox 360 and PS3 video game systems."
1080P is actually only utilized by blu-ray at this time. HD-DVD, which is available with the Xbox 360 as an add on, uses 1080i. The only way you would need a 1080p TV at this time is if you plan to invest in a blu-ray player or a playstation 3 which had a blu-ray player in it.