Scott, as some of the replies have indicated, the general idea would be to be sitting little farther from the speakers than the distance separating the speakers. On toe-in, the general idea is to have the left and right tweeters pointing at your left and right ears.
As to bi-wiring, it makes no electrical difference other than that two wires are equal in resistance to one wire three gauges heavier(e.g. two 16 gauge wires are equal to one 13 gauge wire). So, I'd suggest not to bother, but if you've already got them wired it doesn't do any harm either.
