Yes of course you can enchant without using Sigil Stone, Sigil Stone are the second way to enchant stuff, the first way, and the best way, is by receiving recommendation ffrom the mage guild of every town so you can get access to the Arcane University and from there you can enchant any weapons or armor in whatever way you want it by using the effect of the spells you've learned (you dont need to actually be able to use them, just bought them), Soul Gems (the bigger the better) and of course load of cash.
yes it's me again with a question about magical stuff hehe. it's just that i'm not sure how it work. if i click on the soul gem, it open a window with the list a weapon that need to be recharged, and if i lick on my spell in my spell book, it just selct it (or tell me i can't use it)
i got all the recommendation, and got my staff.
i'm sorry, i don't usually play RPG, so i'm kind of lost in that kind of thing