Yep, Goran was ranked 125 on the last rankings before he won Wimbledon 2001.
I can't find the rankings directly prior to the US Open in 1990, but Pete Sampras was already 81 in the year end list in 1989, so my guess is he would have been higher than Safin is now by the time he won it.
How high was Boris Becker's ranking in 1985 before he won Wimbledon? I know he won unseeded and finished the year at no.6...but I'm not sure where his ranking was before the GS win.
Boris only just missed being seeded at Wimbledon in 1985. After he won Queen's I believe he was ranked somewhere in the region of 18 to 20. (Tim Mayotte was just above him and got the 16th seed, but they ended up in the same part of the draw anyway.)