I have to count the routers I've had. One of a manufacture I can't remember, we junked around 2005 for a Linksys BEF. . 41 10/100 -- no wireless. That was replaced by my CISCO E2000. Once I had them working initially, they never stopped. The CISCO (~ 2009) offered dual-band 2.4 and 5.0, but it only does one band at a time.
I remember those wired routers. I think that I still have one. BEFX, or BEFR, something like that. Not sure what the difference is.
I even had a Walmart-special router package, it was an 11B router and PCCard combo. Linksys made it, but it was branded with a Walmart house brand. Linksys would never even admit to the existance of that unit.
I ended up picking up a Motorola WR850G unit, and flashed the beta 6.x firmware, which enabled WDS mode, and I linked it with a WRT54G that had factory firmware (with "lazy WDS" enabled.)
I hadn't heard of DD-WRT yet, I don't think, but it got me started using WDS and wireless client and bridging modes on routers. I found that it was much easier (and better for multi-OS configs), to use the ethernet port on the PC, and plug it into a networking device that would handle wireless transparently with some sort of base station router, than dealing with the idiosyncrasies of wireless with different OSes and drivers.
I've stuck with WDS and wireless client modes since then, at least until I moved. I found out that using wireless client mode, causes issues with IPv6, so now I'm back to using wireless adapters in each of my PCs, and a base router.