First off I don't think I worded this thread right so let me explain. I'm planning on building a dual-core system soon but I'm looking to save as much money as I can too. Currently in my 754 system I have two 512MB Muskin PC3200 stick with 3-4-4-8 timings. I plan on having 2GB of ram in this new system. So I was thinking to save money on the new system I would use those muskins I have (cause PC3200 is still the highest AMD systems take right?) and get another two 512MB sticks. My question is should I try and get the EXACT same sticks or could I use another maker or timings? Would that screw anything up, especially when going to overclock the cpu? Or would the extra cost (about $90 more for 2x1GB vs 2x512MB) be worth it for less hassle when coming to overclock?