I just bought the Odyssey PC925T battery from Portable Power Systems for $111.95 after doing a web search for the lowest price, which turned out to be much lower than ***DISREPUTABLE VENDOR NAME DELETED*** sells it for. Portable Power was very helpful with their advice (e.g. they told me the "MJ" designation is for batteries with a metal jacket, which is suitable for cars where the battery is exposed to a source of heat, but not needed otherwise, so I saved my money by not getting the MJ version). Highly recommended. Their website is
here.
Incidentally, the "T" designation (e.g. PC925T) refers to the battery model with the brass terminal posts. So if you're ordering off their website, just order the PC925T, PC680T, etc. and it will come with the posts. (Or the "MJT" model if it's for another car where the battery is near a heat source.)
I decided on the PC925T (rather than the lower designations with their lower CCA) because I really didn't want to skimp on power and reliability.
My old battery (Black Panther 800, which I believe is the same as the PC925) was still doing okay, but it had been eight years since I changed it, so I figured it was a good preventive move.