Replicating tables and stored procs is the same in SQL 2005 as it was in SQL 2000 - transactional, snapshot, merge etc. There are loads of new features, and one that might be relevant to your case is the automatic replication of schema changes - as you are talking about stored procedures. I'm not sure if anyone has yet created scripts to replicate SQLIS packages (the new DTS) but I'll post back if I hear of anything.
HTH,
Paul Ibison, SQL Server MVP (http://www.replicationanswers.com)
Paul Ibison
Paul.Ibison@replicationanswers.com