For large, very high traffic and/or heavily scripted sites, the SRO "Ultra" hosting plan is about as far as you can go with shared hosting before you really need a dedicated server, though in some ways, our Ultra plan is even better than having a dedicated hosting plan (and certainly much easier). Run on our highest spec dual CPU servers, SRO "Ultra" hosting allows 50 gigabytes of transfer, 1 gigabyte of storage space, multiple mySQL databases on both local and high-end dedicated mySQL server machines plus available dedicated multiple backbone (dual 100mbit burst) mirror hosting for ultimate availability.