The first tip for setting the cipher suite in Apache httpd is incomplete without:
Without it, the client's preference is used, which may be a slower cipher in your list. You'll want to revise your SSLCipherSuite directive and there's nothing wrong with specifying individual ciphers instead of aliases when using such a short list.
You'll also want to monitor the effects of the change. Before you do anything, make sure you're logging SSL information with something like this: