I have a 2003 bandit 600s, upright riding position, comfortable, but slight bar buzz. it's a good first bike, its my second bike now, i started with 250 ninja, traded up soon after confidence was built.
Not even a year later i'm in the market for a monster 1000, only because i built my skills and confidence.
start off with a bike that won't intimidate you, what ever brand it may be.
Get somthing new, reliable with good features (good brakes, riding position, inexpensive, and comfortable), it will help build confidence and when your ready for your duc, you can trade in your first bike and get close to what payed for it. think of it as low cost renting.
also, if you can pay cash on something new, you might be able to get a better deal, so you can recover more $$$ at trade in.
i bought my ninja for $3,400 OTD, traded it for $3,000. I rode it for 4 months, 2,500 miles, not a bad investment for learning the basics. as far as the bandit, i payed $5,600 OTD, and have an trade offer for $5,550. the bike is just 4 months old with 2,500 miles.
so my cash outlay on my monster will be low, around $5,000.
any way, these are just some considerations for you to ponder.
have a great day!