I went about two weeks without getting on the bike, due to weather, travel, holidays and a brief bout of indifference. I'm annoyed by myself for that. I know I'll feel awesome afterward, and I just don't associate that award with the action yet.
I did a nice 6.5 mile run though, despite feeling the burn early on. It's a nice half-hour, particularly if I push hard. I was surprised to average 13.3 mph, which for me isn't bad considering all of the slow gearing I drop into on any up grade. I need to get toe clips soon though, because as I remember how to peddle in circles, I remember how how much easier it is when you're strapped in.
I'd actually recommend clip-less pedals. It /does/ make you look geekier in funky shoes, but once you get used to them it's actually safer.
Pedals: ~$40-50 on sale (Nashbar is having a sale today). Can get as expensive as you want though.
Shoes: Figure around $70 for a good pair that fits and lasts. As before, it can get as expensive as you're wanting to spend.
As with anything in biking, the more carbon fiber and titanium you mix in, the sexier it gets. LOL
The cool thing in any case is how quick you can get back to previous form. I didn't do anything for a couple years and I'm already back in the 50km club. (it makes me feel better to say 50km of hills)