This would take some effort initially, but you can install
Mozilla Thunderbird for free on your pc. Then you can install a program on your phone called
Funambol. There is a free
funambol plugin for Thunderbird. This would allow you to enter all of your contacts into Thunderbird and sync them to the funambol server. Then you do a over the air sync on your phone with funambol and you have all of your contacts. I recently switched from using Outlook to Thunderbird on my computer and have tested this out on my phone, so I know it works.