Advise for Mediaplayer with good wireless and UPNP?

Hi for a mediaplayer I only need one that plays MPEG-2 (HD isn’t needed) but what is most important is that it has wireless N with WPA2/AES and uses that at its normal speeds (I have bad experience with the N speed on a PLAYON!HD) and that it plays UPNP streams and preferably one that is small and sits down horizontally (not vertical).

Anyone know of a current or older model (since it doesn’t need to be HD) of any brand that I could look into ? Maybe I could look for a 2nd hand player but a new one is fine too.

For instance maybe you own one and really like it and can reccomend me that one.