sorry, about the delayed response. THANKS!!!
Ronanmk said:1) LBS is an absolute MUST for beginners. There is no no advice on the online shops, and advice is something you need plenty when you're a beginner.
2) A Cnndale R700 sounds like a great deal for 1200 u$, and IMHO you should give it serious thought
3) That's true. You can get anything between 20 to 40% (even 50%) off if you wait a year. Go for it (I did with my Giant TCR 1)
On a side note, I wouldn't recommend a 2nd hand bike for a beginner, unless it is purchased on a LBS. FITTING is essential to good, confortable riding, and there's no way a newby can get propper fitting for something he's buying from the Internet. He might save a couple of hundred dollars, but his sore back will draw him out of the sport.
I'd recommend to buy a lower-spec'ed bike (even Tiagra is completely rideable nowadays) and then make a move on fancier stuff.
Cheers