Magic allergy sounds fun for a techno character.
Reject magic, embrace the certainty of steel.
I was tempted to go for that on my first run but I wanted to see what magical items were like. It was ok I guess, but I think I would have had more fun with tech overall. It seems that with magic you really have to invest in WP so you can start getting higher level spells, because that's the only way to increase MA and that's where most of the build variety in a magic build comes from. With TA you have both skills and disciplines to play with, but magic only gets spells. Which is a pity, because being able to make magical equipment and scrolls would have been fun.
Tech has more permanent +stat boosts in the game, IIRC. And there are a few spells that works independently of the magic rating (like the sustains), so you can always have a couple of those floating around.
However, if you are going for a talking Charisma/Beauty run, magic has boosts for those via items that tech doesn't, and the boosts are pretty substantial.
Therapeutics has some really good pharmaceuticals which you can make and give you sizeable bonuses to all attributes.
Permanent or temporary?
Temporary (only two or three ingame hours, I think).
However, there's the Muscle Maker (permanent +1 to all physical stats, permanent -1 to mental stats) and the Brain Builder (the inverse of Muscle Maker).
I believe tech has the charged rings, which gives +2 Dex each at their max tech aptitude. It also has that Vendigroth elixir thing that gives +to all stats. That is about it, I think. The powered armour doesn't give a bonus to Strength, sadly.
Magic gets the Beauty and Charisma items, plus 5 different sustains that allow you to mix and match what you want (most characters get 2 sustains straight off the bat that you should utilise). What it also gets is the war boots of speed and the dagger of speed. Those two are broken as hell in the right build.
I used to think tech was easy mode because of the rings and the balanced sword. Then I discovered those two speed items and now, I tend to wander around dressed in the smoking jacket and just murder everything before they can even move. My little army doesn't usually get a shot in and are nothing but pack mules and quest givers.