I made a mod that scales all the destruction spells (including flames and wall of flames.) Check it out and let me know if you have any comments or suggestions for improvement!
Here's the link: http://www.skyrimnexus.com/downloads/file.php?id=2275
Thanks Mysty. Giving it a shot now and it seems like a welcomed improvement. Maybe a "hair" overpowered on the wall spells at least since I can take even giants down in a matter of seconds, but after struggling to get to 100 destruction using the vanilla system I am not complaining yet. Will keep playing around and endorse it on Nex when it lets me.