Looking for New Flash OGG Player

[Dan 2140]

In USA. Requirements in order of importance:

1) OGG support and good sound.

2) Continuous play by Artist -> Album, for example play all albums by artist and songs in album order.

3) Minimum 16 GB Flash but would like 32 GB Flash

4) Good battery life, > 20 hours.

5) Gapless preferred but not necessary

6) Replay Gain support preferred but not necessary.

I currently have Cowon S9 16GB that I like except for its inability to meet requirement #2.