I've been also looking for a similar player. I just recently purchased the
Vizio VBR231 Bluray player which just came out for $150 at Costco but it doesn't have DLNA capabilities.
Well, I was back at Costco today and noticed the
Sony BDP-BX57(rebadged Sony BDP-S570) for $189. It has DLNA support, Wifi-N, 3D ready and 1gb of internal memory.
Reading over at AVSforums, it's DLNA support is limited but supposedly improving with firmware updates. I'll probably return the Vizio for this.