Nice but Economical Hotels in NY City..?

[dogsballs]

...Are there any??

I'm travelling to NY city at the end of May and meeting my mum for 2 days/nights. Does anybody know where the best bang for the buck is for hotels in NY city. Needs to be fairly central, since it's only a coupla days and we're doing the tourist thing in central NY (she's never been).

Thanks

dogs