wich scaler dvdo 50 or edge

hi there,

i got a question....i could get a scaler from a friend pretty cheap he got 2. i can buy one....but i dont know wich one fits better for my equipment,


i can choose from dvdo 50 (not pro) and dvdo edge


i am watching on a epson tw3000 1080p projector

80% of the time i use it for tv (mostly 80% 1080i / 20% pal)
15% gaming or watching movies via ps3
5% gaming on wii

wich one would be a better choice?

thanks for help!