i had a 98 zx7r, they are nice bikes, not a good wheelie bike, but great for handling. they arent a liter bike, and really arent that much powerful than a new r6, gsxr, or cbr600rr. inline bikes are very peppy and are high revving machines. really no bottom end in a 750cc or lower inline bike, but tons of power up top. all depends on wht ya wanna do wiht it, and how long your gonna keep it. ive seen alot of people buying sv650s, or ninja 500s. great starter bikes, but after about 5 months you get used to the bike really fast, and will want something quicker. so id say a inline 600, or the zx7r are great choices, jsut be smart and dont courageous. take the msf course, watch yourself, and wear proper gear. and always.. always.. have respect for the bike.