whether pt is easy is off topic, but it is pretty simple and straight forward for those that overstand linear/sudio recording. maybe not if your first intro was via pattern-based recording or trackers. even the more advanced stuff is simple, but may take more steps. the only thing that could give pause was it's less than smart integration of midi and vst instruments. it's also not that expensive initially unless going the hd route and/or the regular stuff they charge extra for i.e. more but still limited track count for le/mp, mp3, omf, and some other stuff.
if your track is already a stereo file the option would be to have maybe 2 eq's one for surgical cuts, one for slight flavour and possible shelving and/or boosts/cuts, a transient designer would help if it contained some sampled elements, possibly a compressor for glue and flavour (having the track simultaneously run through another with a compressor a la parallel compression or upward compression would bring some punch and allow the original to remain untouched by a compressor directly), and something to control the pseudo stereo field ( i wouldn't suggest a mid/side matrix plug unless you know how to use it). this can be done in any daw
separating the various elements in a daw would be the better thing to do in the future, you could then group certain things together via bussing/aux/group routing, to make them mesh better i.e. drums, as well as simplifying everything.
the best app for you will be determined by your workflow and compatibility with what you're using to make beats right now. neither cubase or protools have demo's, but even the least expensive presonus interfaces/soundcards come with cubase 4 (don't remember which version type or if they'll soon come with cubase 5). sonar, reaper, abelton (i think), fl studio, and acid (i think) have demo's.
