RealGM

Elton Brown - Israel champion, part of the team that defeated the undefeatable - Maccabi Tel Aviv. 13.3 ppg(72%FG) 5.4 rph
P.J. Tucker - Israel champion, part of the team that defeated the undefeatable - Maccabi Tel Aviv, all-Israel 1st team. 14ppg(58%2pt 46% 3pt) 7rpg.
Pops Mensah-Bonsu - town hero in Granada after monster preformance straight of the plane that kept them in ACB(Spain 1st league) - 22 points and 9rebs.
Eugene "Pooh" Jeter - led BC Kyiv(Ukraine) to reg. season 1st place and silver in the playoffs. Named 1st team PG. 12ppg 2rpg 3apg
Trent Tamien - The USBL guy won the Dutch bball league with Amsterdam. 10ppg 3apg
Dontell Jefferson - Won the Latvia championship with Barons Riga. 8.3ppg 3.5rpg

Keep the thread going.

Where do I start? Most minor league players have some career overseas at some point to make money. (whether it is realizing that they may not make the NBA, or simply due to the financial burden of the minors)

Anyway, here are a few more:
James Thomas 8.2ppg 9.5 rpg- Upim He was a rebounding monster in both the NBDL and CBA. He never really harnessed the offensive touch to be a factor at the NBA level, but his presence on the glass if felt throughout Europe.
Marcus Campbell- Air Avellino This former minor league player showed promise in the WBA and found himself on several NBA summer league roster projections.
Ansu Sesay 12ppg 5.3rpg- Armani Jeans Milano He was the former D League MVP who made his way into the NBA from several 10 day callups. He played for the Sonics for a few years (I think two).

Several more
Kris Lang - silver medal in Turkey with TurkTelekom, 10ppg, 6.5rpg.
Sam Clancy and Phil Ricci - led LeMans to 1st place in ProA France regular season. 11ppg and 7rpg for Clancy and 9ppg and 3rpg for Ricci. Clancy also led LeMans in scoring and rebounding in the Euroleague with 14.2ppg and 7.2rpg.
Mike Benton-led the German league in blocked shots - 1.9pg.
Terrell McIntyre - the man in Italy champion and Euroleague FinalFour team - Montepaschi Siena. 13.7ppg. 5.3 apg. All-Euroleague First Team, Finals MVP in Italy.