If all you need is technical information, then Technet is great. I use it religiously and would probably not survive without it.

If you need more than Technical information, then MSDN might be better for you. I would only get MSDN if you are a developer, not an IT Support person. Eventhough MSDN does not include Technet, it does contain enough information to get by.
But, I would stick with Technet. The Technet Plus is better. You get all of the Beta versions of software and also trial versions without buying them. If you have your MCSE, you get a good discount on both versions of Technet.