Photomatix?

[Hardrock]

Ok sorry for the stupid question but what is the difference between the 32 bit and 64 bit? Also is it better for me to buy the stand alone photomatix pro or the pro plus with the cs3 plugin? Its a $20 dollar difference. Thanks!

 

[KmH]

Ok sorry for the stupid question but what is the difference between the 32 bit and 64 bit?

32 bits. Sorry couldn't resist.
http://www.hdrsoft.com/support/faq_photomatix.html#computer scroll down to "Compatibilities".

Also is it better for me to buy the stand alone photomatix pro or the pro plus with the cs3 plugin? Its a $20 dollar difference. Thanks!

You only need the plugin if you want it to open right in Photoshop. I use Photomatix standalone myself.