ok all this information can be overwhelming...
i was fortunate enough to have a good friends father take me to guitar center but before we went he gave me the most important begginer information
"if u like how it looks and u like how U look with ur bass, ur gonna play a lot better!"
its SOOO true..i know they say dont buy with ur eyes, but when your a beginner and u dont know how to play well..ANYTHING
u cant really judge by the sound
i went in and asked for a good rock/metal bass...he handed me a squier P in white with semour duncan pick ups(price tag said $275)
it was the first time i touched a bass and was FLOORED.
i had never felt the huge strings and was amazed.
but it was white...and i never liked white anything
so i asked if they had any in the back in a different color and sure enough they had a black one
it didnt have the semour duncans but it also didnt have the $275 price tag ($145) it was amazing!!! the guy set up the neck for me and tuned it aswell
i just rolled my finger over the E string and was STOKED!!
(sure it was hooked up to a $1200 half stack but w.e

)
thats the other thing...DONT let them hook it up to a way- out- of- ur- price range amp..when u get home ull be disapointed
the second most important thing is:
-Go to any music store at a time u know wont be crowded
i went at 6 o clock and all the junkies/rockers were across the street at Inn and out
i was the only person in the bass room and only saw 3-4 other ppl the entire time i was in there
it was a great beginner environment and i felt like a rockstar despite just playing open strings
studybass.com
go there even before u get a guitar and just get stuff in ur head...i wanted a bass for 2 months and my parents said in 3 weeks if show us ur serious u can get one...i read that entire site 3x in those three weeks(each time getting more and more outta it) and they saw my desire and helped pay
i have no idea if ur parents will be like this but maybe u can get them to chip in and step up to a better bass...
as for specific basses no1 can tell u that...we can suggest to u but if u want to be good, develop ur own style and ur own taste...being shy was my biggest down fall and i regret it.. dont just settle with the first bass they throw at u...ask them for a different one too
also dont venture too far outta ur price range..ull find ur self dissapointed at the lower level and discourage u early on.
get a amp that has 2 inputs so u can plug a mp3 player/ipod into it and play along with music.
this helped me the most!
its like $8 for a stereo adapter and a 12" cable it sits atop my amp and i can play my favorite tracks and jam along to them
well i typed this all in the quick reply so its probably WAY too long cause i only see like 5 lines
sorry for not specifying a bass but ITS UP TO U..if u let some1 else make it for u, ull be dissapointed
anyways good luck and welcome to TB