Scott, I agree with you 100%. If you're a legit user, it shouldn't matter what programs you have installed. The DRM should find a way to say, "you're legit" without doing some stupid unnecessary insrusive crap. I don't use Daemon Tools, but I do have Nero on this PC -- luckily, Securom throws up no red flags there (probably b/c I don't run Nero drivers in the background).
This install limit BS gots to go -- it's just stupid. All it does is try to limit gamers from wanting to rebuy it on Ebay or other online auction reselling websites. Even then, people might still re-buy it there -- and then get the crack (if one exists, which is likely). So, what's the point?
This DRM BS gots to go, too. All the rootkeys, hidden registries, drivers specific to certain OS's -- it's just plain dumb. It's just another way for them to decide to re-release the game again later and make you pay for it -- AGAIN. Even if it's dirt cheap.
I would've bought from EA the following: Dead Space, Spore, Mass Effect for the PC upon their release date, if it wasn't for their NO revokes BS. I'm sorry, but I just can't tolerate NO revokes for regular price ($30-50) upon a game's release. Call me when it's $10 or less -- and likely by that time, the DRM might've been removed by then officially (maybe) or unofficially (definitely likely).