Here's a quick list of discs from each category that I think are worth considering throwing. There will probably be discs that are just as good or better that I forget, but hopefully I won't forget any of the absolute best discs.
Putters (preferably stiff and low end type plastic):
Wizard
Warlock
Voodoo
Challenger
Focus
Banger
KC Pro Aviar
Mids:
KC Pro or DX Roc
Buzzz
Wasp
Fairway drivers for those throwing <320':
Polaris LS
DX Cheetah
Fairway drivers for those throwing >320:
D/ESP Cyclone
Gazelle
Teebird
Eagle
Overstable drivers for those throwing <320':
Banshee
EXP1
Overstable drivers for those throwing >320':
Z Predator
Champ Firebird
E Spirit
XXX
Moderately overstable drivers for those throwing >320':
S/Q OLF
Z/ESP Avenger
Champ/Star Starfire
PD
Distance drivers:
Valkyrie
XS
X Avenger
Orc
Flash
Destroyer
Wraith
Surge
Again, this isn't an exhaustive list, it's just a combination of what are probablay the best discs on the market and what I recommend.