Need better knives...

[Benjamin Cannonwallace]

Okay guys I am back for a short period of time while on my Spring Break. Right now i am leveling my dagger and here are the two best ones I have.
www.peacelutheranschoolgreenlake.org/MMMMMMM/potco/weapons/bearidol.jpg
peacelutheranschoolgreenlake.org/MMMMMMM/potco/weapons/Raiders%20knives.jpg
(Having trouble showing pictures so sorry for linking.)

This may be noobish, but what is a better dagger knives and where can i get it from. Also since i am a level 35 notoriety will the enemy be too hard on these weapons?

Any input would be great. Thanks.
(Disregard the server name for links. I own that website.)