[Help] How many users can this server handle?

How fast internet connection is recommented? Is it important to be at least 100/100? How many users can i support on a pserver with these hardware?

-AMD Phenom II X4 Black Edition 965
-Asus M5A97 Pro
-Kingston HyperX KHX1600C9D3/4GX (2x4GB)
-SAPPHIRE HD 6850 1GB GDDR5 PCIE
-OCZ AGILITY 3 120GB SSD
-ST316002 3AS HDD (160 GB, 7200 RPM, SATA)
-SAMSUNG 320 GB SATA HDD
-Chieftec GPS-650AB-A 650W

Here is my _RefRegionBindAssoc(would be nice if i would be able to keep this, but if must turn some off its allright:

CHINA 1
TQ 0
West_China 0
Oasis_Kingdom 1
Thief Village 1
Roc 1
Eu 1
Am 1
Ca 1
SD 1
KingsValley 1
Pharaoh 1
DELTA 1
TEMPLE 1
FORT_JA_AREA 0
FORT_DW_AREA 0
FORT_HT_AREA 0
FORT_CT_AREA 0
FORT_SK_AREA 0
FORT_BJ_AREA 0
FORT_HM_AREA 0
FORT_ER_AREA 0
ARENA_OCCUPY 0
ARENA_FLAG 1
ARENA_SCORE 1
SIEGE_DUNGEON 0
ARENA_GNGWC 0
GOD_TOGUI 0
GOD_WRECK_IN 0
GOD_FLAME 0
GOD_WRECK_OUT 1
EVENT_GHOST 1
JUPITER 1
PRISON 1
GM_EVENT 1

1000 users 100% Anyway you can allow forts jangan and hotan and bandit

jesus dude, buy fx processor and ur be pro having Scorpius platform:)