If u have LG Smartphone , U can go to their App store and download to PC. They have a few good free apps. The biggest disadvantage is some of the apps here are old versions.
Also u can download from Android Market ( very very reliable source ) as lot of apps are free.
If u don't have wifi or GPRS, then it really matters. Hope google should give an option to download to PC for free apps or at least they should give the option to directly install the application to the phone ( or thru SDK ) if u connect the phone to the pc via USB