WRT54G/GL is a wireless router; if you don't need the WiFi, purchase a wired only model.
WRT54G is $39 after $15 rebate
http://www.newegg.com/Product/Product.asp?Item=N82E16833124010
BEFSR41 is also $39 after $10 rebate
http://www.newegg.com/Product/Product.asp?Item=N82E16833124001
I have the WRT54G and it's a flawless, trouble-free router. I also have a Linksys BEFSR41 (wired only) router that I've owned for 6 years and I've never once had a problem with that router either.
The GL model was released with a $10 price tag because its running a Linux build as an OS so it's easily hackable; the regular models now are running Vx Works which isn't really hackable, and newer 54G models (v5 and later) have less memory as well for the OS, which is another reason why they're not as hack-friendly.
So to clarify-
WRT54G fine for most users
WRT54GL runs Linux, geared towards hackers and geeks, $10 more
If you don't need wireless, don't buy a wireless router. If you do buy a wireless one and you don't secure the network and router, or you don't turn off the wireless radio, then chances are that your network will get 'visitors' and most likely your computers will be compromised at the least, if not hacked and screwed around with.
Securing wireless routers and wireless networks is a fairly easy task even for someone who's inexperienced. (Setting up my wireless network was the first time I'd ever done it and it was easy for me.) If you get a wireless one, just be sure to set up some security if you are using it as a wireless router, and if you're not using the wireless, then just turn the wireless radio off and it will function only as a wired router.
I'd highly recommend Linksys products.
D-Link routers are 100% trash and I'd never buy one again even if my job or life depending on it because they lock and reboot frequently no matter what firmware you're running. I made the mistake of buying a $39 D-Link DI-524 router and it started rebooting/losing connection every 10 minutes after I owned it for like 2 days. I returned it, got a refund, and paid $60 for a WRT54G and have never one time had any problems.
I also would not recommend Netgear. I've had plenty of problems with Netgear routers rebooting as well and I'm surprised they're still in business either (same as D-Link).
Linksys man...trust Linksys.
As for Mac support or a lack of it - you honestly won't need it. All routers nowadays have browser-based configuration which can be handled by Safari, whether or not the package says "Mac support" on it.