新手買450d之疑問

各位前輩,
小弟是新手,最近想要購買Canon 450d,在Y拍上有看到幾種組合

1. Canon EOS Kiss X2 EF-S 18-55mm USM 鏡頭 kit = 20,800
2. Canon EOS Kiss X2﹝450D﹞KIT含EF-S 18-55mm IS防手震 = 21,900
3. Canon EOS Kiss X2 EF-S 18-55mm IS 55-250mm IS 雙鏡頭 貿易商貨 = 28,400
4. Canon EOS Kiss X2﹝450D﹞KIT含EF-S 17-85mm IS防手震 = 30,400
5. Canon EOS Kiss X2 EF-S 17-85mm IS USM 鏡頭 = 30,400
6. Canon EOS Kiss X2﹝450D﹞單機搭配Sigma 18-50mm F2.8 EX DC超值組= 31,900


哪種C/P值比較高而且適合初學者呢?

請給小弟一些建議,謝謝!!