Web Advice

Because I work at a non-profit it's often hard to find good help for cheap money. In this case I'm specifically talking about web/interactive services. We have a pretty lousy guy right now that does our updates whenever he eventually gets around to it. I can send him 30 emails in a week ranging from polite to "hey shithead, where are the updates" and then 3 weeks later you get a one line email that says "changes done, have a good weekend ". No explanation or anything.

Which leads me to my current problem. I'm looking to get a new webmaster and possibly make some site changes. I've met with a few different people and have a few different directions that I could go. The first one is the usual. A company with a designer and some code writers who can do whatever you want, if the money is right. Most updates and changes will go through them and we'll have to pay their hourly rate. For them to make parts of the back end of the site user friendly and accessible to us will cost 700-1000.

The second option is purchasing a "pre-built" site or a framework that I can update, customize or change anytime I want. The back end of the site looks like a forum tool bar with all the fonts and links, it's very strait forward. I'm looking specifically at dotnetnuke. Do you guys have any experience with that company?

The initial purchase of the skin and setup will cost about a grand to $1500 but once that is done and our hosting is transfered I can do all the changes and layout on my own from my desktop and don't have to pay for changes.

Thoughts?

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EDIT:
After the comments below I did some quick research.  I don't even know if I could figure out how to install DNN on my own let alone use it.  That crap seems complicated.  Maybe its worth it for someone else to do, just not THAT worth it.