If you like to know how much damage those arrows do go to
http://www.rpgplanet.com/morrowind/modcontrols/mods.asp
and search for the titel "Lurlock's arrow damage Display" by Lurlock.
Also, if you want to spent less on trainers make sure they like you, or, read books that add skills instead
Finally, some skills can be quickly raised:
1-acrobatics, by jumping up and down on the steep stairs in the Vivec cantons.
2-athletics, by swimming untill your really drained of fatigue then use a spell/potion/item to restore fatigue and repeat this until satisfied.
3-armorskills (especially unarmored, because even in full gear you'll still get hit on unprotected parts), by going to an eggmine, walk past a bunch of scouts (or hit a few workers) then let yourself get pounded, remember to watch your hp and armor-durability.
4-spells, by making a spell for one second and constantly casting.
5-sneak, by swimming near a hostile watercreature, go to the coastline and hold sneak while the creature is still trying to get to you.
