We just bought (as noted here with a tip o' the hat to cb400Bill) a 100 mixte for my daughter, and it is a very nice bike indeed, entry level or not. You can find (maybe you already have) your bike at
www.miyatacatalogs.com. Local CL has a Miyata 90 mixte converted to fixtie for $350! I am pretty sure it's the same one that was offered a few days earlier at $90, stock.