4.8% I think, you can still make money off it through an ISA but as you say 1.2% interest isn't really worth the hassle..
Also (mini cash) ISAs have a limit of £3600/year, formerly £3000. This means that once you've filled up your ISA, in order to 'break even' on further savings you need to be getting at least 4.8% after tax. For basic rate payers that means 6%+ gross; for higher rate payers, they need to be getting 8%+ gross.
Obviously higher rate payers will probably be paying off their loan pretty quick anyway via PAYE, but it's food for thought. The rate gets updated every year around 1st September so you need to keep an eye out for what the RPI is at that time. With house prices on the wane, I suspect if anything the rate will fall this year.
In general it is still worth keeping your student loan as long as you are savvy with your savings, as although the gain is fairly small, you never know when you might need that cash in the future. If you pay off your student loan now, you almost certainly won't be able to get a loan that cheap in the future. What's more, the amount you have to repay each month is linked to income, so if you fall on hard times (pay cut, unemployed etc) having the cash is no bad thing as your repayments will fall/cease.
Anyway, to answer the OP: I've got some money stashed aside for my wedding next year, and a potential house move this year. I'm not consciously 'saving up' though in terms of cutting back on anything, it's more a case of just not overspending.
Been tempted to get a 42" 1080p TV, XB360 and Sky HD & Multiroom though - more of a whim brought on by bank holiday sales than a planned purchase though.