The new SL-DVI adapters can let you make the jump to EF with DVI monitors, with cheap adapters.
...But again not in XP.
Stuff that sucks about TH2G (based on my experience with the Digital Edition):
-Win7 support is flawed: manual refresh rate required for 5040 which breaks DX10+ support, erratic support of lower triplewide res's, limited max bezel management. Granted, TripleWide was little more than a firmware-based "bonus", and TH2G DP probably fixes all of this.
-pricey additional piece of hardware. Now that AMD & Nvidia have GPU-level alternatives to TripleHead, nobody wants to pay a dime more than necessary.
-limited resolution. AMD & Nvidia's alternatives let you use any fancy panel size at native res.
The strong points of TH2G
-triplewide display in WinXP.
-a real investment. Buy one and all the good features will stick through any hardware/software upgrades (ideally).
-triple display from one output. You can connect TH and a secondary monitor to any card. Compare to Nvidia's "you need two cards for this and oh, by the way - the fourth output can't be used".
-bezel management ownz "compensation" in my book. Hotkey toggle, adjustable at any time and independently on the left and right monitors; no resolution change. Your GPU doesn't have to deal with even more pixels and game FOVs/HUDs won't struggle with strange, per-user ARs.
I can understand that TripleHead2Go may not be appealing to many padawan surround gamers today, but it still has some valuable unique features. I'm not selling mine anyway, even though I will go the Nv Surround route soon; in fact, I plan to build a WinXP/TH2G PC for all my games that either don't need loads of horsepower to run smoothly, aren't Hor+ or have compatibility issues with 7. And that's a lot of games, including brand new ones.