Tax Season Dilemma..........What to do?????

      OK!!!!!!  I'm getting back a nice chunk of change on my tax return (about $7,000), and I have have a purchasing dilemma.  I have been thinking about replacing my 24 inch iMac (2 years old) with the new 27 inch, wide screen iMac.  This would be great, and then I would put the "old" Mac in my son's room, as this is what every school uses for their students.  My other choice is the new 55" Samsung LED 8000 Series.  The picture is unbelievable on it.  Looks like you could walk right into the picture, it's that good.  My wife is telling me to just buy both, but I want to put some into savings and take the kids to Disney World.  So what to do???

      Also, buying the TV means, selling my 60" Sony SXRD and my entertainment center to replace with a console cabinet to hold all my gaming goodness.  So I just don't know.  I'll take suggestions though.