Remote Calendar Sync - is a simple solution possible?

[Lisaweb]

I have a new xv6800 with Windows Mobile 6, and I'd really like to sync my calendar remotely, using my Google calendar (iCal format). I'm already syncing Google calendar to Thunderbird w/Lightning on my PC, and then syncing it to my phone via bluetooth ActiveSync. But I'd much rather just have it auto sync directly with Google thru the internet connection on my Phone. I know there are a bunch of services out there, but I'd much rather just pay a one-time fee for a cab that will solve this for me. Anyone know of one that will allow the calendar to be synced remotely from Google?

Much thanks for any ideas you can provide.