OS X :: Two MBPs In Sync - Failing To Work

After waiting sometime for the refresh, I plunged to buying a 17" MBP. Now I'd assumed all along the way to sync data was well planned out, since many have a Mac and a MBP (in my case it's two MBPs). But after much Googling I'm left disappointed. I want my two MBPs in sync. If I drag and drop a file on one, I want that reflected on the other automatically and vice versa. Both will be on same LAN most of the time. Essentially one is left connected to a 24 inch LCD with wireless k/board and the other is left in living room and I expect to be able to interact with either and the changes will show up on the other (and vice versa). To handle iCal and AddressBook I went for MobileMe (and found it disappointing yet again, failing to work and costing relatively a lot). But the real problem is files. As the machines will not each change files whilst be on a different LAN I don't see why an Internet based sync is necessary, but I'm not entirely opposed. The more I look into syncing two Macs the more I'm surprised at the lack of robust solutions. I'm hoping I'm wrong and someone can tell me how easy it is. I imagined I'd use Chronosync but when I look at apps I use and what they say, (e.g. 1password, OmniFocus, DevonThink, Curio), they seem to recommend using the likes of DropBox. But DropBox is not a great sync tool and I only see it as good for limited number of files, besides I've got Gigs of stuff to keep in sync so it seems mad to be going via the cloud. (I looked into iTunes and ended up deciding on a network drive for it as my iPod will have what I want to listen to on the go.)