How to partial sync Dropbox contents to my device? Is it possible to sync only some folders of Dropbox?

I have 5GB+ files on Dropbox cloud, but only want a few folders to be synced to my Galaxy Tab 7.7.
Yes there's a way. It's called Foldersync. It allows you to set up folder pairs to sync and the full version even allows you to sync on changes. It also supports several other cloud services.