Nathan Robertson and Gail Emms have set their sights on Olympic glory after winning Commonwealth gold in Melbourne.

The English pair recovered from a slow start to win the mixed doubles title on the final day of competition, beating New Zealand's Daniel Shirley and Sara Runesten-Petersen.

Team-mate Tracey Hallam had earlier completed a full set of Commonwealth medals with victory over Malaysia's Mew Choo Wong in the women's singles final, just two days after her 31st birthday.

But while Hallam insisted she would be too old to defend her title in New Delhi in 2010, Robertson was already targeting Olympic glory in Beijing in 2008.

"There is definitely more to come for us," said the Athens silver medallist.

"The next two years will be hard work for us but we only have one more aim. We want the Olympic gold medal.

"It's going to be in Beijing, which is extremely tough, but we know what it takes to win in China, we've done it before.

"We can win as many Grand Prix events as we want but when we look back on our careers it will be the medals we've won and what colour they are which we'll look at."

Robertson and Emms trailed 4-1 in the first game and only led for the first time at 9-8, but eventually edged away to take the opener 21-17.

The English pair were quicker out of the blocks in the second game and a run of nine points out of 10 put them in a commanding position, Robertson eventually securing the match 21-10 with a thumping smash.

"I'm ecstatic, and so happy that my parents, John and June, are here, it's a great Mother's Day present for my mum," said Robertson. "I would have been a bad son if I I'd lost today!

"They've travelled halfway round the world and been here all the way and I'm happy that it could finish on such a high point.

"We wanted it so bad, no-one put more pressure on us than ourselves. We knew we were big favourites for the gold and have come through extremely strongly."

Emms, who also took bronze in the women's doubles, added: "When we saw that the New Zealand pair had made the final we were both more confident of beating them than the Malaysians because our style of game suited them better.

"It wasn't perfect badminton from us at the start but we just stuck in and knew if we could get the first game, out attack would be so much more effective from the faster end in the second game.

"Everyone was expecting us to get gold so I feel very relieved but also happy and proud of the way we have battled through everything and what we've achieved since Athens."

Hallam had earlier also enjoyed a straight-sets victory, winning 21-12 21-15 to gain revenge for a loss to the same player in the mixed team event.

The left-hander from Burton-on-Trent, who won bronze in Kuala Lumpur in 1998 and silver in Manchester four years ago, was the number one seed and had not dropped a game on her way to the final.

A delighted Hallam said: "It's absolutely fantastic. I didn't think it would happen but I put in the work and it came off my way.

"I didn't think it was going to be that comfortable after the team event. I just kept the pressure on and didn't go for the lines. In the team event that was my weakness, it wasn't that I played badly, I just went for the lines too much and made errors.

"But today I was just happy to keep it on the court and play it out. I had confidence in my physical ability and played the rallies out, let her make the mistakes. In the second set I thought she was going to come back at me and she did start to, but then I think she froze a little bit."

Hallam admitted she had no chance to celebrate her birthday on Friday, adding: "I didn't do anything on my birthday, all I wanted to do was get into a position to win silver or gold, but this has put the icing on my birthday cake.

"I'll have a good night tonight and enjoy the closing ceremony, then hopefully a bit of shopping and sight-seeing tomorrow."