InfoCentral is right there are no shortage of awesome plugins for Carrara, that give some very pro features. The powerpack was a good place to start. I'd also recommend any of Julien's plugins: http://julien.chaplier.free.fr/ Especially his ArchiTools plugin which adds another modeler to Carrara. Replica is also a great plugin. I'd also suggest Potentializer, and Metamesh, great plugins: http://www.kawachi.zaq.ne.jp/kurozuka/akurodigital/ Whats nice about most of the plugins for Carrara is that they are inexpensive and you can get what you want. There are tons of plugin developers out there for Carrara now.