The best replacement for e900 is e1200 linksys.

The best alternatives to e900 are rated as following:
★★★★★  e1200 linksys
★★★★★  e1200 cisco
★★★★  e1000
★★★★  d900
★★★  lg chocolate
★★★  wrt160n
★★  ea2700
★★  e1500
★★  dir-615
★★  e2500
★  samsung d900
★  netgear n300
★  e1200
★  kg800
★  belkin n300
  u600
  wrt54g

Your alternative for e900 is not listed? Suggest!
Speaking about e900, one probably shouldn't forget about d900.

Other search terms related to e900 and their ratings are:
★★★★★ d900
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e900
e1200 linksys
e1200 cisco