I'm badly in need of help and help on media player.

I'm in process of planning an AV setup for living area.

My current plan is to;

a. get a LCD/Plasma (Pio 508/46X3500/Panny 50PZ750)
b. get a media player
c . get a video processor (Crystalio/Vantage/VP50Pro) or AV receiver (Onkyo 905) **If the VP/AV comes with built-in media player, then item (b) is not required
d. get a NAS (Thecus 5200Pro)

Guesstimated viewing would be 50% SD broadcast, 20% HD broadcast, 15% DVD streamed from NAS, 5% HD streamed from NAS

I gathered I would like to have the following functionalities in the media player.
i. stream content to VP/AV receiver with file native resolution and let VP/ AV receiver do the work of upscaling
ii. stream content to VP/AV receiver with native aspect ratio
iii. multi language support in GUI (mandarin)
iv. display high resolution photos above 12 megapixel
v. supports H264, Mpeg4 AVC
vi. easy setup and use, less buggy
vii. not sure if this is impt, 1giga LAN (I think mostly are 100Mb LAN)

Is there any media player that does all the above?

Anybody able to help me out ?