I've been on vacation in Costa Rica over Thanksgiving week. Here's a couple of pictures:
Whiteface Monkey (capuchin)
Sunset at Playa Hermosa
Hummingbirds in Monteverde
The wildlife shots were handheld with a rented Canon EF 100-400mm f/4.5-5.6 L IS USM Lens
The beach was with a tripod with my 18-200mm kit lens all on my Canon 60D. I shot 3 bracketed frames and processed in Photomatix HDR software.