Mining sector giants including Kazakhmys, Fresnillo, Vedanta and Rio Tinto lift Footsie higher as metals prices advance.In precious metals, Randgold Resources is higher after gold broke through the symbolic $1,000 an ounce level.Outside the mining sector, Intercontinental Hotels is now the best performer in a buoyant FTSE 100. The Holiday Inn owner was upgraded to 'outperform' from 'neutral' at Credit Suisse.FTSE 100 - RisersKazakhmys (KAZ) 1,075.00p +6.12%InterContinental Hotels Group (IHG) 815.00p +6.12%Fresnillo (FRES) 713.00p +4.85%British Airways (BAY) 202.00p +4.77%Vedanta Resources (VED) 1,861.00p +4.02%Marks & Spencer Group (MKS) 368.40p +3.86%Randgold Resources (RRS) 4,362.00p +3.39%Rio Tinto (RIO) 2,547.50p +3.37%BG Group (BG.) 1,052.00p +3.24%Antofagasta (ANTO) 761.50p +3.04%FTSE 100 - FallersAviva (AV.) 399.80p -3.01%Legal & General Group (LGEN) 71.50p -2.59%British Sky Broadcasting Group (BSY) 527.50p -2.22%RSA Insurance Group (RSA) 124.90p -2.04%Invensys (ISYS) 291.40p -1.72%Rolls-Royce Group (RR.) 460.30p -1.62%Liberty International (LII) 522.50p -1.60%United Utilities Group (UU.) 455.20p -1.58%Centrica (CNA) 255.00p -1.54%HSBC Holdings (HSBA) 655.00p -1.50%