pc 2700 is a good performer. I just purchased an ACER laptop and an extra 256mb of pc2700. I also had pc2700 with my last motherboard.
since you already have ddr ram, you probably can't use ddr2.
I think ddr2 is different enough so that if you have a ddr system, you can't use ddr2.
I could be dead wrong, so do some research, or let another techie who knows more about ddr2 correct me. I just don't have the time to look it up right now.
AMD Athlon XP 2500+@ 200x11 - EPoX 8rda3I - Thermaltake 420watt silent PSU - 2x512MB PNY PC3200(DualChannel) - TT HSF - PNY 5900SE, 128MB DDR, 256-bit - - Toshiba SD-R5002: DVD-RW - NEC DVD-RW - 2 Antec 80mm fans - 1 Delta 92mm fan - 1 Antec 120mm fan- 1 TT 120mm fan - Windows XP Pro - WD special edition 80GB 7200 RPM- Seagate 80GB 7200 RPM 8MB cache - Onboard Sound - Onboard Ethernet
ACER Travel Mmate 4000LCi - Intel Pentium M 710 - 15\" XGA TFT - 512MB DDR333 - 40 GB HD - DVD-rom/CD-RW Drive - WLAN 802.11b/g - Winxp Home - Intel Extreme Graphics - Average Battery Life: 4-5 hours - 6.4 lbs