Just a few tips:
Update 3 for Delphi 2005 was released on May 11. It can be downloaded from
the Borland site. Among other things, it should address performance issues.
Also, if you haven't used it before, there's a Delphi Configuration Manager
that can be downloaded from http://www.alphalink.com.au/~jed/dcm.htm . You
can configure Delphi 2005 to load only Delphi or only C# or only Win32 or
only .NET or...