Help please, with system upgrade choice!!!!

I would to make an upgrade to my system. I use it for playing games like BF2, also for DVD decoding/copying, and adobe photo shop.

Should I upgrade to 2 gig of ram? or buy a Raptor 10,000 rpm HDD?

I here is what I have now;
Nero InfoTool 3.00
Software Information
--------------------
Operating System : Windows XP Home Edition (5.01.2600 Service Pack 2)
DirectX : DirectX 9.0c
Hardware Information
--------------------
CPU : AMD Athlon XP 2395 MHz
Bus Speed : 212 MHz
Motherboard : ePox EP-8RDA Pro nVidia-nForce2
System :
BIOS : Phoenix 6.00 PG
Memory : Corsair MXS 2x512@1024 MB (10ns)
Sound : Realtek AC97 Audio
Video : NVIDIA GeForce 6800 GT
PSU : Raid MAX RX=520XP
Drive Information
------------------
Drive : Memorex DVD16+/-DL4RWlD2
Type : DVD±R/RW DL Recorder
Attached Devices
Description : ID 1 (0): NVIDIA (RAID0) STRIPE 223.58G
Type : Seagate Disk Drive
Attached Devices
Description : ID 0 (0): Maxtor 6L300R0
Type : Disk Drive
Description : ID 1 (0): Maxtor 6Y160P0
Type : Disk Drive
Attached Devices
Description : WDC WD160 00JB-32EVA0 USB Device
Type : Disk Drive