Guild Wars 2

I don’t know how to comprehend my crash log that’s becoming longer than the great wall. But I can play at varying lengths of time till I get black screened. Cant make heads or tails of what’s the problem minus the fact my computer was built in like 2009-10 and may be over due for an upgrade.
Specs
Windows 7 home premium 64 bit
Intel i5 760 2.8ghz
8 gb ram
Nvidia Geforce GT430
Asus P7P55D-E PRO motherboard

An army buddy of mine is hooking me up with a new video card Gtx 650-ti. So what else would I need to upgrade to get rid of this constant crashing. Hoping its a smaller fix and not everything needs to go. Thanks in advance.
here is part of the last crash that happened today.
—> Crash <—
Exception: c0000005
Memory at address 00000014 could not be read
App: Gw2.exe
Pid: 2568
Cmdline:
BaseAddr: 00400000
ProgramId: 101
Build: 23057
Module: nvd3dum.dll
When: 2013-09-04T01:10:07Z 2013-09-03T21:10:07-04:00
Uptime: 0 days 0:52:03
Flags: 0

—> System <—
Name: I5SSD
IpAddr: 192.168.1.124
Processors: 4 [GenuineIntel:6:14:5]
OSVersion: Windows 6.1 (64 bit)

—> System Memory <—
Physical: 5361MB/ 8190MB 65%
Paged: 13415MB/16378MB 81%
Virtual: 2400MB/ 4095MB 58%
Load: 34%
CommitTotal: 2963MB
CommitLimit: 16378MB
CommitPeak: 3318MB
SystemCache: 2139MB
HandleCount: 27515
ProcessCount: 64
ThreadCount: 885

—> Process Memory <—
Private: 1274MB
WorkingSet: 1073MB
PeakWorkingSet: 1279MB
PageFaults: 3375937