This site is called AlternativeTo. It's a site offers users alternatives to software for Mac, Linux, and Windows based on something a bit more unique. User experiences.
In their own words:
We have one mission: helping you find the right software for your computer or mobile phone. To do this we wanted to rethink the whole process of searching for apps. No more browsing through categories with long lists of crappy software.
Based on our users recommendations we list great alternatives to the applications you want to replace. By joining the site you can participate in the process of making these recommendations better, so please join in!
Think of this as a wiki for softwares and it largely speaks volume about what experiences users have with a particular application based on what they recommend rather than just a top-down review of an application. You can be sure I'll be coming back here again and again as I try avoiding costly applications in this economic downturn.
Also, be sure to always see if there are open-source alternatives to any applications that you need. For instance, definitely give Openoffice a try if MS Office is priced a bit out of your budget. Gimp for Photoshop.
Advise: bookmark AlternativeTo.