Smithing and enchanting are both overpowered once they're high level. I was playing a mage type character for most of the game. I'd die a lot, playing on the second hardest difficulty but it wasn't overly hard. Around level 25 I got my smithing and enchanting to 100. I made some smithing clothes that gave me I think 100% better smithing combined. Then made my dragon scale armor, upgraded it and enchanted it so all of my destruction spells were free to cast and my one handed weapon damage was 120% more plus extra health, mana and mana regen. The rest of the game was super easy. I never had a problem fighting anything ever again. I did all of the storm cloak missions after that and I could easily take down entire forts/cities by myself. The dragon fights were a joke. I made some daedric weapons that did around 300 base damage plus 69 fire and 69 lightning damage on top of that. When you have two of those you can kill a giant in one combo, and I only had 3 perk points in one handed weapons. I don't think there are any better items in the game than the ones you can make when you have 100 in each of those skills, and they're actually really easy to level up if you do them at the same time. All you need is about $6000 for the smithing and just travel around to the different smiths and buy their iron and leather and make iron daggers. I'm not sure how much you need for enchanting, but I'd just buy all of the petty soul gems I found, then enchanted the daggers I made and sold them back for way more than what I paid for the ingredients. The paralyze enchant gives you the most money, and then the steal health one.