Gozma, you may not have a choice but to go with Corsair. Newegg no longer has the genuine Samsung CTL sticks and has to sell the DTL sticks which don't do as well.
I had a good 512 MB stick of Samsung that just broke, so I had to RMA it to Newegg. I asked for a replacement, but if it is the DTL sticks I'm going to send it back. The burnin process is a pain-in-the-butt, only to find the stick may only do 175 at 2.5-3-3-6-2.
I'm going to give the Corsair PC3200 a try, although it costs $30 more. It is guaranteed to do DDR400 but at 2.5-3-3-6-2. I am hoping it has more headroom so I can run faster settings. One good thing is it uses pretested Samsung chips and they don't need to be broken in.
The Mushkin PC3200 is not at option as they don't have 512 MB sticks, and even the 256 MB sticks are backordered.