Grumpy buggers!
Come on, chin up! I don't think MVC is overkill for any site. It really improves development speed and allows you to re-use code *much* more easily. I have to look after a lot of old-style sites, and it is *painful*.
In fact, if anything, there's *less* cruft with them. No need for the old `($conn = mysql_connect()) OR die();` rubbish.
Personally, I use Kohana. It's based on CodeIgniter, but requires PHP5 and is generally tidier.