I think we will elect to go the STR+DEX option for our home games too, as it doesn't make a lot of sense to have it a lower skill than others as it is the one most people practice right from childhood. I'm not sure about the martial arts skill either. I'm almost of a mind to get the GM to scrap it.
To me Martial Arts simply represents intense training with the same weapons as a normal unarmed person. It would be like giving someone a sword and telling them to use it for a few years and then pitting them against someone with a lot of intensive training (i.e. Martial Arts) behind them. It represents training and technique, not some special gift a normal person wouldn't be able to acheive with a lot of practice and effort.
The first time I met a martial arts kid who wanted to fight me I put him down fairly quickly and without permanent injury. I had had a lot of fighting practive with my 3 much older brothers and neighbours, I knew how to fight and his city-kid karate didn't prepare him like raw experience. On hte other hand, my current housemate, with his highly-honed boarding-school freestyle grappling techniques wups me every time, and my Gung Fu instructor friend makes me look like a top poppet, since he has been in training for twenty years or so. I was going to propose to our group to simply use the 1/20th skill as added to STR to calculate damage instead of using a different skill, though this of course should apply to any melee weapon.
Another thing we thought was worth looking in to was the skills for other missile weapons versus Crossbows. Crossbows are a heck of a lot easier to use, and we thought we'd use a base skill for them of DEX+10% to represent this. Ever tried to trow a knife? The point and click interface of a Crossbow is much easier. We did consider using DEX+STR, but didn't want to overly advantage the muslce bound heroes that win out in melee already.
We elected to ditch First Aid and give everyone Healing as a basic skill. All first aid is is basic healing knowledge, so a Healing Roll at say (+20%) is equivalent to First Aid. Again, we thought it is something we are all used to from childhood. The number of split lips, toothless grins, stick wounds, broken limbs, cracked skills and such I saw as a country boy had me pretty used to some basic stuff by 12 (I never took a serious injury my self though). Here in Australia we tend to get shown how to deal with a snake and spider bites pretty early too, so there was debate over the treat poison skill too and it's application as an option of healing. Of course treating serious injury would require a more difficult penalties.
Another reason we merged First Aid and Healing is the ubiquity of magic. With magic healing so readily available in the community, we thought surgery would'nt be that common, as magic woudl replace most (not all) of it's function.
That's enough, I'm well diverged now.
DD