I tried different channels, changing between different WPA and WEP modes, etc, TKIP is what did it for me.
Since I changed to TKIP, I had an initial glitch where my computer gave me a warning that the settings saved for my saved connection with my computer were invalid or didn't work and wouldn't let me connect. I had to go into my computer's network connections and delete the saved connection and then reestablish it, and now both my computer and DROID X connect solidly without hanging, having to turn wifi off/on, etc.
Before this, I'd have the issue where my DROID X would say it's connected, but only give me internet connectivity for about 20 seconds or so and then stop responding (though it still showed connected).
Since I went to TKIP, it works the way it's supposed to.
FYI, I had no computer connectivity problems prior to this nor after (except for having to re-save the connection on my computer).
Just a warning, though: Make sure you know your password to connect your computer to your Wifi, because, in my case, if I didn't, I wouldn't have been able to change the settings back to original, since my computer was cutoff after making that change (less I connect with an ethernet cable to the router directly).