There are two portion to cmd.exe. First there is the window that pops up for dealing with the text console. I would replace that with ConEmu. That program is actually meant as a wrapper for the Far File manager but works just fine without it. It is very similar to Console2 but also is much more stable and has better features.
Second there is the command line interpreter. I would replace that with Powershell if you actually need any of its features.
I currently run using ConEmu with a batch file to setup my preferred environment. This is kept in my Dropbox folder so it remains synchronized between my computers.
