Library for deep learning on Amazon EC2 with CPU and GPU support for convolutional neural network

I want to train a CNN on a bunch of images. I want to run it on Amazon EC2 CPU or GPU clusters. For running deep learning on a cluster, I figured that some of the options are:

1. h2o (with Spark)
2. Caffee
3. Theano

I am not sure which of these options suit my needs. I read through h2o documentation on deep learning, they do not seem to support CNNs. Any ideas on how I should proceed?

Another side question: How do I upload my images to the cluster for training the CNN? I am fairly new to cluster computing.