I'm looking to purchase a set of 4 x 2 GB used RAM modules. I've narrowed my search down to three choices. All three seem to be trustworthy, although the third one is from a very new seller. Need your opinions and advice to make the final decision. http://www.ebay.com/itm/111822478903?_trksid=p2060353.m1438.l2649&ssPageName=STRK:MEBIDX:IT (Quite cheap at $40, but is asking for $30 shipping cost to Armenia, although it still ends up a bit cheaper than the other two) http://www.ebay.com/itm/370992336069?_trksid=p2060353.m1438.l2649&ssPageName=STRK:MEBIDX:IT ($13.6 shipping) http://www.ebay.com/itm/191744244183?_trksid=p2060353.m1438.l2649&ssPageName=STRK:MEBIDX:IT (The seller has a very short track record; seems reliable though. $7.52 shipping) P.S. There is one more option with free shipping, but the problem is that this same item is listed under two different sellers. Seems kind of suspicious. http://www.ebay.com/itm/251913458812?_trksid=p2060353.m1438.l2649&ssPageName=STRK:MEBIDX:IT http://www.ebay.com/itm/252165103305?_trksid=p2060353.m1438.l2649&ssPageName=STRK:MEBIDX:IT