Replying to Sony Vegas +K

so, im finally looking into getting some decent editing software. i use a pc.

i have heard nothing but good things about sony vegas. while shopping around i came across 2 different programs, they are both very similar and i cant tell much difference (other then price.

here they are:
http://www.amazon.com/Sony-Vegas-Movie-Studio-Platinum/dp/B003L51CZ8
and
http://www.amazon.com/Sony-Vegas-Movie-Studio-Platinum/dp/B003L4ZQKQ/ref=sr_1_3?s=software&ie=UTF8&qid=1309579316&sr=1-3

i will be using them to edit mostly ski edits, and want somthing high quality and that i wont be wanting to replace in a year b/c im bored with it.

if you could please tell me the difference between these 2 programs and which would be better for me and my pocket, that would be much appreciated!

++K to good answers

if you have any other suggestions under $65 hit me up.