convert Parallels VM to VMware (VMDK)

[gotenks05]

I have been using Parallels for awhile now and liked it for its web development benefits. However, since they will not give anyone an update of Parallels Desktop for Mac 3.0 for free (if they owned Parallels Desktop 2), I was thinking of switching to VirtualBox (when the final version is released). I don't want to install Windows again, after getting rid of Parallels and somebody from innotek said that VMDK files work with VirtualBox. What freeware/shareware(with no trial limitations, like FFMPEGX) can I get to convert my Parallels VMs to VMware VMs (VMDK)? Also, will I need to convert the HDD files too?