Amongst online storage services, Box has always offered a generous amount of space, especially if you took advantage of its free 50GB deal. One feature it lacked for personal users was syncing, but that is now possible without a business account. Here's how.
Slickdeals member mfaraday noticed a "Get BOX Sync" option under the "My Account" tab. This provides the Box Sync app (for PC or Mac). So, first log into your account at Box.com and click on "My Account" in the menu to see if the syncing option is there.
If it's not there for you (it wasn't for me), don't worry. Apparently new users are getting the feature over time. If you can get an invite for 50GB free from someone, you can set up a new account and should see the syncing option (You might even be able to send a 50GB invite to yourself from your account — as long as you don't have a commercial email address like Gmail or Yahoo).
If you don't have access to another 50GB offer, Slickdeals user BSGjunkie offers this link for 25GB:
I set up a new account via that link and now have desktop syncing plus the 25GB storage space (normally free accounts come with just 5GB). Although it does suck to go down from the 50GB promo, syncing may be a worthwhile trade-off. Note though that the maximum file size limit is 100MB.
It's unclear how long this will be available, so jump on it now if you're interested.