Info about selection 3.0c

[TooRude]

I'm building a new water cooled computer and have selected a gig PC4200 GeiL DDR533 with Abit IC7-G mobo and was going to get a 2.8c to o/c but it seems the D1 stepping 12 cap version has flooded the market. so I want to make sure I give myself the best chance of getting an m0 30capped on the first try which is why im considering a 3.0c if anyone has any suggestions or a site that lets u request and is at a reasonable price id really appreciate the help, thank you.... also any other advice based on my given specs would be helpful