hey everyone=)

i own a 2008 honda city vtec and i am relatively very new to the car thingie=) BUT i am very much interested in "tuning" or "pimpin" my car(hope that's not weird for a girl). i just have a few questions and i really really do hope some of you can help me out specially the ones who have experience in tuning citys and the like=)

here are my Qs:

1. i want to install 17 inch rims on my car but i don't know what the proper tire specs and offsets should be, will a 195/45 do it? ir will a 205/45 be better?
2. will a 17 inch affect my ride in any way? a friend told me that a 16 inch rims would be better in terms of ummm the "tagtag" factor? but then idk a 17" pink color would be cool ROFL
3. my friend also told me that i needed to buy new springs? since the stock springs won't be able to support the bigger rims and tires? he said something like a 1.5 inch drop or something? can someone please shed some light on this?
4. oh and one more thing, when i'll change my springs would it also be recommendable to change coilovers? again, my friend suggested it to me

well um, hope my questions aren't too hard to answer

looking forward to your replies guys=) xoxo