A big-box retailer in Canada has Energy Connoisseur, 2 x CF-30 plus CC-10, as a package on sale for $600.
I realize it might not be a spectacular price but a search around suggests it's not awful. I now have some sitting in a box, not yet setup ... fully returnable for a few days if necessary.
That's not such a bad price, but don't keep them for that reason alone. I haven't heard those particular speakers, but Energy builds fine products. Did you do any listening and/or research before buying? If I were you, I'd listen to some different brands before making a final decision - preferably in direct comparison with the Energys Otherwise, you may be forever second-guessing yourself.
Another model you might want to try, which have a
fantastic reputation, is the Infinity P363, which is on sale at Best Buy right now for Can$500/pair. They have a 30-day return policy, so you could pick up a pair and try them right beside the Energys. The matching centre is not on sale and goes for $300, but you don't have to buy it now - you could wait for that one to go on sale at some point.
As for surrounds, what 's the budget? I don't think you need to stick with a particular make/model series, as they would be far enough apart that timbre matching isn't as big of an issue - IMHO.
For a subwoofer, again, what's your budget? If can do DIY, you can get a great subwoofer for a very reasonable amount.