Asus K53E
Specifications

Price comparison
Reviews for the Asus K53E
Source: Hot Hardware

Certainly Intel doesn't mind either way you'd go, because Sandy Bridge is in both machines. So as far as they're concerned, you can't go wrong, though AMD might argue that a bit for thin and light machines, with something called Fusion. And of course Asus has higher-end SKUs with Core i7 Sandy Bridge chips under the hood as well, if you're looking for something in between this and the MacBook.
Single Review, online available, Long, Date: 03/23/2011
Comment
Intel HD Graphics 3000: Integrated graphics card in the Intel Sandy Bridge processors (Core ix-2xxx). The HD 3000 is the faster (internally GT2 called) version with 12 Execution Units (EUs).
Only some 3D games with very low demands are playable with these cards.
» Further information can be found in our Comparison of Mobile Graphics Cards and the corresponding Benchmark List.
2520M: Dual-core Sandy Bridge processor with integrated graphics and dual-channel DDR3 memory controller.» Further information can be found in our Comparison of Mobile Processsors.