I am sure Tweeter will take full advantage of you.
er, yer stuff that is.
Checking the stats and that seems like a nice display.
Your DVD doesn't have HDMI, so either the receiver or the display will be converting from component, I would forget HDMI for now and hook it up with component. Even once you get a HDMI source chances are fair you will be best served connecting directly to the display instead of a trip through the receiver. HDMI is NOT looking like somethng you really want to be deep into in its first generation and before products that support it are common.
Nothing in the audio/video industry has profit levels as high as cables except for extended warranties. When they tell you that you need lots of both, its your job to politely decline and have it set up as simply as possible.
Truth be told, I wouldn't be buying any of their cables or letting them do the hookup, just the heavy lifting.
Since I am on a roll, I don't think you need the power conditioner or the remote, your system is going to need to be turned on and off, change channels, and press play, etc. which are all functions found on the most common and easy to use remotes that come with most of the gear you are getting.
OTOH thats just me, enjoy your stuff and don't let me grinch it.