do a search. dun expect us to spoonfeed u. this kind of topic has been asked to death.
2lenses are better than one. once ur a higher lvl u will appreciate the need to change lenses. face it. getting a dslr is so tat u can change lenses. if u dun u are better off with a pns with good range.
It's the range of focal length covered by the lenses. Canon Price Guide
The focal length of kit2 lens is longer (135mm) compared to kit 1 (55mm). If unsure, get the kit1 lens first and see which kind of photography you are in. Use the $ not spend on kit2 to get other necessary items (dry cabinet / dry box, cleaning kit, tripod ...?).
Get other lenses once you know when and why you need them. No point getting lenses first and then "let's see for what to use".
Given a choice, I prefer the Canon 18-200mm IS instead of the dual lens combination. Details are as follow:
What make me choose my 18-200mm instead of the dual kits lens:
* Better built quality(subjective)
* Shorter min focus distance in telephoto range compared to the 55-250mm
* Non-rotating front element (good for CPL & GND)
* "Rotation" Speed (it is faster to turn your zoom ring then to switch the body/lens)
* Less haste (don't need to carry extra lens or body during event shooting)
* Only need to purchase 1 set of hood & lens (UV, CPL, etc)
There is no "best place" - depending on luck, good negotiation skills and goodwill of various gods you might get best deals everywhere. Do your homework (check models, features, define your needs and wants), study the price guide, call the shops for quotes / email for e-quotes.