I know you were asking about the 4xxx series, and I know you were probably looking for some help on them, so don't flame me, but have you thought about looking at ati's latest offerings? A 9500Pro can be found cheaper than a 4800, and it offers dx9. Of course, you may not want an ati card (for whatever reason) and that would be the last of that.
If you need a GeForce Ti get the Abit Siluro Geforce4 Ti4200 64MB for $89 on <A HREF="http://www.newegg.com/app/viewproduct.asp?DEPA=&submit=..." target="_new">Newegg</A> (note that the Ti4200 128MB cards on the page are listed as "refurbished", but the Ti4200 64MB is not, it's new). It's a steal.
I benchmarked the TI4200 vs the TI4800SE (I didn't know it was SE until later) I used 3DMark2003, on the TI4200 both the 2nd and 3rd test were unbarable...but on the 4800Se they could be watched (Still sucked, but got like 1 - 2 fps better). I went with the 4800se because it was the same price to me.
"You need to be trusted by the people that you lie to, so that when they turn their backs on you, you get the chance to put the knife in." -Pink Floyd, ‘Dogs’