Hi,i am Dave from Oxford uk,i have joined to gain some knowledge of this facinating hobby.i presently own an olympus e-pl1 with a 14-150mm micro 4/3s lens.my main use/interest is football photography,taking shots sat afternoon,at my local non -league team oxford city fc.i am wondering whether an upgrade to a full size dslr would be beneficial,and if so which camera /lens would be needed,given a price paramater of up to four figures or there abouts.anybody any ideas? cheers.