IMO the Energy Take 5.0 with the s10.3 sub thats $400 on vanns.com is one of the best deals going right now.
The problem with these small speakers like those energies and the polks you linked is that you absolutely NEED a good sub to go with them. The reason is those little satellites do fine at producing midrange frequencies, but cant produce lower frequencies. Those polks for example go down to 130hz.
The take classic's on the other hand go down to 115hz. Not a huge difference, but it allows you to set your crossover at something like 120hz in your receiver. I personally can't speak with 100% surety, but 120hz is the highest crossover i've seen for a sub in a receiver.
The s10.3 sub is really a nice sub for the price, to get something arguably better you'd have to jump up another $125-250 over and above that for something like an ed A2-300 or a HSU or SVS sub, etc.
Klipsch RF-62 L/R, RC-62 C, Energy C-100 SL/SR, HSU VTF-15H, Marantz SR7008.
"All speakers sound good when you're on a coke binge in the middle of an orgy." - Heebdawg16