Thanks to reader CapitalImagePhotography for pointing out that Amazon has Photoshop Elements 10 for $45.98 with free shipping or download.
This is 54% off the regular price. I have no idea how long this discount is for. My guess is that it will last through Monday 11/28 but I don't know that for sure. If you need to upgrade an old version of PSE or you are just starting out in real estate photography this is the time to grab a copy of PSE 10.
I did a post a while back that summarizes my recommendation for upgrading to PSE 10. Basically, don't bother to upgrade from PSE 9 but if you have an older version that PSE 9 upgrading to PSE 10 is a good idea.
Also, Photoshop Elements (PSE) is a good companion package to Lightroom 3. The LR and PSE combination will do all the post most real estate photographers need to do.
Update: Actually Adobe has a bunch of other discounts as well. Click here for the whole list. Noteables on this list are $100 USD off on LR 3 and $150 USD off Photoshop CS5.