yes and absolutely. Where I work sells Alpine as well as Pioneer, and we used to Carry diamond audio. I've heard all the components in various setups and in that budget with the limitation of onlinecarstereo.com it's the best ya can get.
10 years ago people would look at you like you were crazy for running more than 45Wrms

.. times have change alot since components became cheaper and amplifier power is affordable now.
Realistically unless you crank the bens out of it to the point of leving yuor ears ringing for hours aterward, anything above 40Wrms is more than enough. Quality comes first. Also the Diamond audio speakers are very efficient. They will play about 4DB's louder than the type-R's.
You won't be dissapointed with the Alpine setup for sure. However you'll be much more pleased with the reccomendation I gave