You can do your reindexing in parallel by explicitly using multiple jobs that operate on portions of your tables exclusively. Michele or Ola's stuff (latter is my preference because it has much more than just indexing stuff and it also creates jobs for you) allow you to do this I believe. AVOID SQL Server's maintenance plans COMPLETELY!!
Best,
Kevin G. Boles
SQL Server Consultant
SQL MVP 2007-2012
TheSQLGuru on googles mail service