Consolidate & migrate Sharepoint Servers: WSS 3 to Foundation

Consolidate WSS 3.0 sharepoint servers on single Foundation server.

I have a mess of WSS 3.0 sharepoint servers that never grew beyond a few hundred megs each.  Now, I'd like to migrate them all to a single sharepoint foundation server.  The old WSS 3 version ran the embedded edition of MSSQL and II need to first attempt installing Foundation on the express version.  (the combined data is well under 4 gb)

::CURRENT::
## WSS 3.0, 2003, 32-bit ##
server1
  http://site1  (ip: 192.168.1.31)
server2
  http://site2A (ip: 192.168.1.32)
  http://site2B (ip: 192.168.1.33)
  http://site2C (ip: 192.168.1.34)
server3
  http://site3  (ip: 192.168.1.43)
server4
  http://site4A (ip: 192.168.1.44)
  http://site4B  (ip: 192.168.1.44:8080)

::PROPOSED::
## Sharepoint Foundation 2010, 2008, 64-bit ##
Server1 - ip: 192.168.1.50
http://newsite/Server1Site1
http://newsite/Server2SiteA
http://newsite/Server2SiteB
http://newsite/Server2SiteC
http://newsite/Server3Site3
http://newsite/Server4Site4A
http://newsite/Server4Site4B

Its somewhat daunting!  THough I've successfully migrated stand alone servers from WSS 3.0 to foundation via the database attach method, I'm not certain how to consolidate them.  I'm concerned about conflicting database names (WSS_Content is always the same).

I've tried renaming the old sharepoint databases first through SQL eXpress.  So far, this tactic is failing miserably.  (I'm connecting to WSS 3 via \\.\pipe\MSSQL$MICROSOFT##SSEE\sql\query - and trying to follow these instructions http://www.loginworks.com/blog/index.php/2009/09/23/rename-database-files-both-physical-and-logical-ms-sql-server-2005/)

Any other methods I should try?