You can never have too much space from Dropbox, but you can grab some more space for free, as dropbox is in beta and Dropbox have to test the automatic upload photos and video capability. In exchange for, they are trying the experiments to build, one might also get up to 4.5 GB of storage space.
Experimental Dropbox build 3.1.12 Import photos and videos automatically from cameras, phones, and SD cards and batch upload and downloads. As dropbox says:
During this beta period, we are also offering additional free space to test automatic uploading of photos and videos. For every 500MB of photos and videos automatically uploaded, you'll receive another 500MB space bonus, up to 4.5GB total.
Downloads for both Windows and Mac are available only from Dropbox Forum. Note that it is highly recommended to back up what is in your dropbox, before you upgrade to this build. When I installed it, the client software automatically detect the phone and started downloading the images of its new "Camera Pictures" folder, and put into my account, hence I had an extra 500MB automatically. Enjoy !