First what job u are looking for & what qualification do u have?
As published in the Star paper that with an MBA qualify is more easy to get job in UK....For your info, there is more job available for QA & civil engineering job...cos during my graduates in UK...mostly my frens in civil firms get the higher chances...
If u get local graduates & go to UK for job..i would say its more harder...
What u can try is nowadays UK have on job training....
Total course is 3 years...the 2nd years u will be on the job training(salary provide) & 3rd year will continue your course....after graduates u might have higher chance succeed there....
U must remember the employee need to provide a working permit(min 5 years) to employ you. This will incure a sum of money (5000 pound)...
For the employer to hire u...the employer require to answer for justification to the UK embassy why they recruit u as why not european or the local ppl.....From this u must be extraordinary person that able to do the job superb compare to their citizen...

Thats the comment i can give. For info i was in UK for abt 3 years by working 1 1/2 year in a factory...in the while loking for a profession job...but i failed & give up & come back to Malaysia....
GOOD LUCK