Which photoshop would be good to use for my nikon d7000?

Just wondering what photoshop is the most current or what would be the best edition to use?

Adobe Photoshop CS5 is the newest version and the best - also the most expensive. It is included in the various CS5.5 Suite packages.

If you are only looking for a tool to manage and improve your digital photos, without needing to do a lot of pixel editing, then Adobe Lightroom 3 is great for photographers.

Adobe has a trial version.http://www.adobe.com/products/photoshoplightroom/