My advise would be if u can try it out. Boh vinyl and CD mixing.. It may be hard to judge since your only just starting, but u may find that u are a vinyl feel junkie.. or u may not be, depends on the person really. Another thing you should realize is that vinyl can be digitalised... So if you go for the CD players and u really want a vinyl track on cd u can just digitalize it. (you would need another Turntable for this though). Another thing about Music availabilty the legal MP3 market is expanding very rapdily. There are Alot of sites selling legal good quality MP3s now adays and their range is only gettting better. In the near future i would think that most music is available from these sites.. (Costs the artists less as well as there is none of the usual costs that comes with CDs/Vinyl so its only a matter of time till they all make their labels aviailable online). Another advantage of this system is that u pay per track. When you buy a vinyl you normally have 2 or 4 tracks and there is always the chance that some of these tracks you will never use. Even though you say you do not want to scratch it is very possible with the modern CD players. (the Denons and the Pioneers (beware the technics digital Turntables)). For ease of mixing i would have to say that CDs are easier. Especially the Cue functions on CD players makes it just that little bit easier and quicker to cue and cue accuratly. So Digital works just as well as vinyl (if not better) and to be honost there is alot more you can do with things such as loop. Denons DO play MP3. And i personally would suggest CD as all music on your pc you can burn and put in your sets. I have 2 Vinyl Turntables and they are great.. but with just a little bit of bias my Pioneer cd deck just lets me do more with the music i play.
Hope that helps.