If you are looking for a cloud based solution for data warehousing then Amazon’s Redshift may be for you. Redshift is a high performing database designed for gigabytes and petabytes of data. Since it is part of the Amazon Elastic Cloud it easily scales out for performance and offers on-demand pricing.
The immediate benefit of leveraging Redshift is the lack of high up front cost. Currently the price is under $1 per hour for a single node 2TB data warehouse. This allows you to tiptoe into cloud based storage and processing. Another benefit is being able to quickly spin up a prototype on data that has not been used previously. Instead of slowing down your on-premise solution to perform initial analysis, try sending the new data to the cloud and see what types of data you have, what data quality problems exist and then turn off the node when you are finished.