You should check out http://www.thepluginsite.com to see what add-ons are available fro PC/MAC versions of PhotShop and PhotShop Elements.
There is also a monthly newsletter that is free and well worth that price. . :<)
I've gotten several and I'm now trying the free version of “Light Box”. It is worth taking a look at and trying. Its claim to fame, beyond being free, is very rapid adjustment to RAW or its derivative formats. Nice and fast.
Warren