Advice on leaving the job and joining training?

hi, this is meghna, presently working as an embedded system programmer. i want to shift my base to RTOS...so was planning to undergo a training. i passed out in 2004...m having nearly 2.5 yrs of work exp. is it wise to undergo ar RTOS training at this point my career? was planning to go in for QNX RTOS....how diff is it from VXWorks...is it globally accepted. regards, meghna (09828810526) snipped-for-privacy@gmail.com