LCD tv shopping help?

Big thing for me is price diff

47" Vizio 1080p LCD with all the inputs for 1289 at Wal-Mart

An Equivacal Samsung, LG, Phillips, or anything is much more expensive for differences that seem almost negligble to me.

Im an audio junky not a tv.

Now 01audis4, Since im going from a 36" CRT SDTV to a 1080P HDTV besides the massive difference in general

How many of these nit picky things am i really going to notice, a lot of people i work with have vizios and are very happy with them.