If you're looking for software but don't want to spend a lot of money...or, actually, don't want to spend any money at all, you may be in luck. There are lots of free software programs out there that are very similar to better-known, brand-name software programs that cost money.
Trent at thesimpledollar.com has a great post that lists the top 25 software bestsellers on Amazon.com and then lists equivalent software that's free.