There are many BIG issues with Heller, first is how we interpret the constitution. And more importantly can we butcher it to suit or "current" needs.
If we lose our 2nd, we WILL lose more than just that. If we allow them to ban ownership of the primary tool of the right to bear arms, hence the "arms", then there can and will be other things to follow. Why not restrict telephone and internet access or other mediums of communication? After all isn't the right of freedom of speech only if you can yell it in person? And then, only if no one gets offended and starts a riot.
How about the right to illegal searches and seizures? Well, we THOUGHT it was an emergency when we entered the home...we swore we heard cries for help. And low and behold we found these illegal handguns that we banned private citizens from owning.
Can't advertise beer or liquor actually being consumed because it might cause someone to want to drink it. We can't say bad words on TV or radio because it might offend viewers. Yet video games produced for children are worse than Saving Private Ryan. (also free speech)
Freedom of press anyone? Ever sat in a news room? There are pages and pages of stuff that come off that feed that can't be used because it is restricted.
Heller will be the first step (if it goes the way we want, and I pray that it does) is that basically we wrote the constitution as it was stated, not to be Frankensteined, or allowing line item veto's of it. It' there all or nothing. The founders set up the constitution to avoid the very issues that we are having today!
This IMHO is the end-all, be-all of decisions that we will face in our life time, and most likely our children's life time. This will decide if our society will ultimately fail or survive.
Look at other countries, we keep saying they are "going back to the stone age" with the draconian laws they enforce, and in turn bring back the good old draconian violence that goes along with a suppressed society. More wars, more violence, more hate, more blame, and less hope.
I can't remember where the stats are but somewhere on average each person breaks a law of some sort every minute.