IF you're ok with training indoors a few times per week, you can start with power-based training by just using trainerroad. You don't need the powermeter right away - it's actually very hard to train 'properly' with a powermeter - requires a big overhaul of your entire training courses, such as riding up and down fixed elevation hills repeatedly or doing loop courses so you can do intervals correctly. With TR, you're good to go right off the bat - just one FTP test, and you can do all your training at the right zones. Good stuff. No coach needed until you feel you need more guidance than TR offers. $10/month - cheap as heck.