Worth it to upgrade from a 8800 GT to a GTX 250?

Current system:
Win XP
ASUS M2A-VM mb
4 gb ram
Athlon 64X2 Dual 6400+
8800 GT 512 mb
2x 1tb hard drives non RAID, FS 9 and X only on 1 of them
Saw a PNY 250 GTS 1GB in BB today for 150, is it worth upgrading from my old 8800GT?
TIA,
Steve
Win XP
ASUS M2A-VM mb
4 gb ram
Athlon 64X2 Dual 6400+
8800 GT 512 mb
2x 1tb hard drives non RAID, FS 9 and X only on 1 of them
Saw a PNY 250 GTS 1GB in BB today for 150, is it worth upgrading from my old 8800GT?
TIA,
Steve