I'm considering buying either a Linksys WAP54GX or a WRT54GX. My question is whether there are any advantages to using the WAP54GX over the WRT54GX? The WRT54GX costs about $20 less and of course it has a built-in router which I can utilize later if I choose. For right now I have a separate router I am using so if I decide to purchase the WRT54GX, I'll be using it as a WAP only. Thanks!