I'm going to update 80% of LAN equipment.
The core switch will use this fiber card: WS-X6724-SFP - Catalyst 6500 24-port GigE Mod: fabric-enabled.
Some switches will continue using same speed, they have fiber with 100BaseFX.
I got two type of SFP, GLC-GE-100FX= and GLC-FE-100FX=.
Theses two of SFP can work with this fiber card ?.
I don't know how accurate the Cisco documentation is, but the WS-X6724-SFP will not support GLC-GE-100FX and GLC-FE-100FX. You'll need the WS-X6148-FE-SFP.
Catalyst 6500/6000 Series
Cisco Gigabit Ethernet Transceiver Modules Compatibility Matrix (Table 9)