XSEDE allocation research request (XRAC) proposals are due October 15th. An overview of XSEDE is on the ARC website, in general it is a large set of national resources for computational research. They are at no cost, but do require a proposal for access. These proposals are simple and most get some sort of an award/resource.
Brock Palen at ARC is the local XSEDE Campus Champion and is available for help learning, using, and accessing XSEDE resources. He can be contacted at hpc-support@umich.edu.
Researchers who want to get started sooner and/or are new to XSEDE resources should use a Startup proposal which are accepted year round and require significantly less documentation.