Oh yeah, I've been by your page before. I'll definitely keep a look out on ebay for those scalers.
In the meantime I'll just deal with the transcoder I have now. The colors are still very accurate, they just don't pop at 480p like Wipeout HD does at 1080p. My monitor does have a "super bright" mode, which I was exited about at first because it definitely got the Wii menu to the blinding level of white it is on most displays, but it just ended up crushing all light grays in the process. So I just went back to the subdued whites with good overall contrast in standard mode.
By the way, I saw at the bottom of your page you were waiting on the super slim PS3. Have you picked one up yet? If so, have you noticed any issues with any games? I just got one and I've noticed that in the Wipeout HD menu, whenever the second loop of the menu music begins, it starts skipping like a CD. Definitely didn't happen on my old 60BG fat model (which I decided to sell because the color clipping and lag in backwards compatability mode). I've also read elsewhere that people are having issues with Uncharted 3 on the super slims. I hope these are very isolated issues, because I really like the look of this thing and how it stacks neatly on top of my PS2.