I would say that Sony and Samsung models you have selected are on par with each other.
You should demo your content on both TVs and then decide.
But I still think, that you should also look at 32" HD-Ready LCDs. Check your content on these panels also. The reason I say this is because, on smaller panel size, HD-R and FHD is not going to make any real difference, unless you are going to sit as close as 5 feet. Most normal viewing distances lie in between 8 to 10 feet. So before making a preconceived notion that FHD is better than HDR, verify the fact with your own eyes.
I am also postulating that perhaps in 3 years, you may wish to upgrade to a larger size. At the time of resell, you old TV will not fetch more than 8-10k of the value. So the % depreciation and absolute loss on a higher cost TV will be much higher too.
Another mistake which people often make is that they think that 32" widescreen (16:9) TV is bigger than 29" normal (4:3) CRT. This is not true. Both have more or less same viewing area.